I'm the kind of person who spends forty-five minutes comparing two identical Bluetooth speakers on Amazon and then buys neither because I can't decide which has better bass. My friends call it being "thorough." I call it exhausting. It's not just shopping — it's career moves, relationship conversations, whether to renew a lease, whether to start a side project. Every decision feels high-stakes, and every decision comes with a two-week hangover of wondering if I made the wrong call.
Then I stumbled on a concept from a venture capitalist blog: keep a decision journal. Log what you decided, why you decided it, and what you expected to happen. Then, when the outcome is clear, go back and review. At first I did this in a Notes app, but it didn't stick. What finally worked was a printable decision journal with a dead-simple format that forced me to be honest without overthinking the journaling itself.
The decision journal template I settled on has six fields per entry:
The magic is in the prediction field. Writing down "I expect my new boss to give me more autonomy within three months" forced me to realize I had no evidence for that expectation — I just wanted it to be true. When I reviewed three months later and the outcome was mixed, I could see exactly which assumptions were wrong instead of just feeling vaguely disappointed.
My biggest decision journal entry was about leaving a stable job I'd been at for five years to join a startup. I spent three weeks agonizing, making pro-con lists on sticky notes, asking everyone I knew for advice. Then I sat down with the template and wrote it out in fifteen minutes. My prediction: "I'll be happier with more ownership even if the pay is less stable. Confidence: 6 — because I've never tried this before and I might hate having more responsibility."
Six months later, I filled in the outcome: the prediction was directionally right — I do love the ownership — but I underestimated how much I'd miss the structure of a larger team. That insight wouldn't have surfaced in a pro-con list. The decision journal didn't tell me I made the right choice. It showed me exactly what I got right and wrong about myself, which is way more useful.
A decision journal in a spreadsheet feels clinical. An app feels like another task. Paper feels like a conversation with your future self. I keep my journal in a folder on my desk. When I'm stuck on a new decision, I flip through old entries and remind myself: I've made good calls before. I've made bad calls too — and I survived those, learned from them, and made better calls next time. Seeing the evidence in my own handwriting is way more convincing than some app telling me to "trust the process."
The confidence didn't come from being right more often. It came from knowing that even when I'm wrong, I can trace exactly why. And that knowledge — specific, documented, undeniable — is what finally quieted the second-guessing.
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