The System That Works Without Willpower
This post may contain affiliate links. If you click and make a purchase, I may earn a small commission at no extra cost to you. I only recommend tools I genuinely use and believe in.
This post reflects my personal investing experience and is for informational purposes only. It is not financial advice. Please consult a qualified financial advisor before making any investment decisions.
I did not know how to stick to an investment plan when I opened my first account in 2020. I only knew I wanted to try.
When I added VTI to my Firstrade account in 2023, I was going through the settings when I found it: a toggle for dividend reinvestment.
Dividends paid by VTI and 0050 could either land as cash in my account, available, spendable, requiring a decision, or they could automatically purchase more shares without me touching anything.
I switched it on and closed the laptop.
It took about ten seconds. And it was one of the more important investment decisions I’ve made, not because of the amount, but because of what it removed. From that moment on, dividends stopped being a decision. They just worked.
That single toggle taught me more about how to stick to an investment plan than anything I had read.
The Real Reason Most Investment Plans Fail
Most people who fail to stick to an investment plan don’t fail because they don’t know what to do. They fail at the friction points, the specific moments where the right behavior requires an active decision.
The month the budget is especially tight and the transfer hasn’t gone out yet. The week the market drops and every financial headline is telling you something is wrong. The quarter when dividends land as cash and sit there, available, while something else in life feels more pressing.
At every one of those points, most investment systems put willpower between you and the right decision. And willpower is the least reliable tool available. It runs low in hard seasons. It weakens under stress. It fails on the days when it’s needed most.
The alternative isn’t more discipline. It’s a system designed so the right behavior happens regardless of how you’re feeling on a given Tuesday.
That’s what I’ve spent six years building, not a portfolio that requires me to make good decisions consistently, but one that makes the good decisions for me.
The First Automation: Monthly Contributions
In November 2020, the first thing I did after opening my investment account was set up an automatic monthly transfer.
Not a reminder. Not a plan to contribute when I had money left over. An automatic transfer, scheduled, fixed, happening whether I thought about it or not.
At the time it felt almost presumptuous. We had $2,000 in a bank account, a missionary income that changed every month, and I was committing $30 to an investment account on autopilot. It felt small enough to be meaningless.
About a year later, I sat down and looked at the numbers. The balance was modest, this was 2021, the year the market barely moved and deposits seemed to disappear into a flat line. I was questioning whether any of it was working.
But what I noticed was this: even in the months when I had doubted the most, even in the months when the budget was tightest and I had thought about pausing, the transfer had gone through. Every single month. Not because I was strong enough to push through the doubt. Because the system didn’t ask me.
If I had been making that transfer manually each month, checking the account, deciding the amount, moving the money by hand, there are months I would have skipped. I know myself well enough to know that.
The automation didn’t let me skip. That’s the only reason the number existed at all.
The Second Automation: Dividends That Work Without Me
When I discovered the dividend reinvestment setting, I wasn’t looking for it. I was just exploring the account options.
But once I understood what it did, the decision was immediate.
Should You Reinvest Dividends?
Dividends paid by VTI and 0050, small percentages, paid quarterly or annually, can either land as cash or automatically buy more shares. If they land as cash, they require a decision every time: do I invest this? Do I leave it? Do I use it for something else? The amount is usually small enough that it feels negligible, which is exactly when it’s most likely to drift toward something that isn’t investing.
With dividend reinvestment enabled, there is no decision. The dividend is paid. Shares are purchased. The account balance changes. I don’t touch anything.
The first time I noticed it happening, saw the fractional shares appear, understood that the portfolio had grown without me initiating anything, it wasn’t dramatic. But it clarified something: the system I was building wasn’t just about what I did. It was about what the system did when I wasn’t doing anything at all.
Every dividend reinvested is the portfolio compounding without requiring my participation. If you want to see what that looks like with your own numbers over time, the SEC’s compound interest calculator at investor.gov is worth a few minutes.
(The full picture of what that compounding has produced over six years, the actual numbers, is in When the Hard Years Finally Made Sense.)
The Third Automation: Pre-Decided Destinations
The same principle extends beyond the monthly transfer and the dividends.
When unexpected money arrives, Chinese New Year red envelopes, a birthday gift, an anonymous supporter gift, an end-of-month budget surplus, it already has a destination before it lands. The decision was made in advance: emergency fund first if there’s a gap, then the buffer, then the investment account.
The moment unexpected money arrives is the worst time to decide what to do with it. The money feels new, the options feel open, and the path of least resistance is usually not investment. Making the decision once, before the money comes, means the moment itself requires nothing from you.
Same system. Different category of money. No friction point, no willpower required.
(The full decision order is in a separate post on unexpected money, publishing later this year.)
The Fourth Automation: Index Funds Remove the Temptation to Act
This one is less obvious but just as real.
Because I invest in broad index funds, VTI tracking the total US market, 0050 tracking Taiwan’s top 50 companies, VXUS covering international markets outside the US, I have no individual stocks to monitor, no earnings reports to interpret, no moment where a single company’s news feels like a reason to act.
When markets fell, there was nothing to sell. When markets rose, there was nothing to time. The funds hold everything. The only decision that ever made sense was to keep contributing and let the market do what markets do over long periods of time.
In 2021, when the balance barely moved despite a full year of deposits, I thought about stopping. I didn’t, but I want to be honest that the thought was there. What pulled me back was two things working together.
The first was evidence. I went looking for historical charts, every major dip in 0050, every recovery that followed. What I found was that the longest any investor had ever needed to wait for a full recovery was somewhere between 18 and 24 months. That number grounded me. The doubt was real, but the historical record was longer than my doubt.
The second was something harder to quantify. The same principle that had kept me going through hard seasons in missionary work, faithfulness with small things, sustained long enough, produces something real, applied here too. I wasn’t just trusting the market. I was trusting what I had come to believe about consistent, patient effort over time.
Index funds helped hold the line. There was no single stock underperforming that gave me a concrete reason to act. Just the market, doing what it does, and a system that kept running.
What the System Actually Protects
Six years in, the portfolio has crossed $23,000. It started at $30 a month on a missionary income. It grew through COVID, through the flat year of 2021, through a cross-country move within Taiwan, through a new baby and a tighter budget and every season that gave me a reasonable-sounding reason to pause.
None of those seasons changed the system. The transfer went through on schedule. The dividends reinvested automatically. The windfalls landed in the investment account. The funds kept accumulating.
I am not a more disciplined investor than most people. I built a system that lets me stick to an investment plan without relying on discipline to function. The distinction sounds small. Over six years, it’s the difference between $23,000 and whatever a manually managed, decision-heavy version of those same years would have produced.
I don’t know exactly what that number would have been. But I know myself well enough to know it would have been smaller.
How to Stick to an Investment Plan: Applying This to Your Own Portfolio
You don’t need to replicate my exact setup to use the same principle.
Find the dividend reinvestment setting on your platform. Most brokerages offer it, but it isn’t always obvious where to look. On Firstrade I had to search for it before I found it. Worth the few minutes it takes. Turn it on and leave it on.
Automate the contribution first. Whatever the amount, $30, $50, $100, set it to transfer automatically on a fixed date each month. Not when you have money left over. On a fixed date. The automation is the point, not the amount.
Write down your windfall order before the next windfall arrives. The decision made in advance is always better than the decision made in the moment. Emergency fund first, then buffer, then invest, and leave a small release valve for something enjoyable if the windfall is larger than expected. A system with no room for life eventually gets abandoned. The full decision order is in a separate post on unexpected money, publishing later this year.
Choose index funds if you can. Not because they always outperform, they don’t always. Because they remove the temptation to act on noise. Less to monitor means fewer moments where acting feels justified.
The goal isn’t to be disciplined. It’s to design a system that doesn’t require discipline to function. Once the system is running, your job is mostly to leave it alone.
That’s harder than it sounds. But it’s much easier than relying on willpower every month for the rest of your investing life.
One more thing: seeing the full picture of your portfolio in one place is part of what keeps a system like this running. I use Empower for that. It pulls every account into one overview without requiring you to log in to each one separately. It is free.
The full investment picture, what I hold, why I chose each fund, and the platform I use, is in [What I Actually Invest In and Why I Chose Each One].
And if you want to see what six years of this system produced in real numbers, start with [When the Hard Years Finally Made Sense].
