We all make decisions every day. Some are big, like changing jobs. Others are small, like replying to an email or skipping a meeting. Most of the time, we make these choices, move on, and forget. That’s a mistake.
Every decision is a chance to learn. But if you’re not writing down how you think, you’re not learning as much as you could.
Decision journaling is a simple habit that helps you become a better thinker. It doesn’t take much time. It doesn’t require any special tools. But it gives you one thing most people don’t have — a clear view of how your mind works.
What Is Decision Journaling?
It’s not the same as a regular journal. You don’t write about your day or your feelings. You focus only on decisions.
Here’s what you write:
- What was the decision?
- What were the options?
- What did you expect to happen?
- What actually happened?
- What would you do differently next time?
That’s it. It’s a 5-minute daily habit with long-term value.
Why It Improves Strategy Over Time
The best strategies aren’t based on luck. They come from knowing how you think, spotting patterns, and fixing weak spots.
But memory is flawed. We forget the “why” behind our choices. We only remember the result. And sometimes we lie to ourselves about it.
Writing it down in the moment gives you an honest record. You can go back and see if your thinking was solid — or just a guess.
A 2021 study in Organizational Behavior and Human Decision Processes found that employees who reviewed their decision-making process weekly made 25% fewer repeat mistakes in the following quarter. That’s a big shift from one small habit.
Aadeesh Shastry’s Approach to Journaling Decisions
Aadeesh Shastry uses decision journaling every day. He writes down just one decision, even if it’s small. It could be about work, a project, or even a conversation.
“I try to write down what I thought would happen, not just what happened,” he says. “That’s where the real gap shows up.”
By comparing his expectations with the actual outcome, he’s able to spot blind spots. Over time, this gives him an edge. He doesn’t just react. He improves.
He also reviews his journal weekly. Not in detail — just a quick scan. What mistakes keep repeating? What decisions paid off? Where did he rush?
This feedback loop helps him stay sharp, especially in high-pressure situations.
Real Examples of What You Might Learn
When you review past decisions, you start to notice patterns:
- You choose speed over clarity
- You delay tough conversations
- You follow emotion instead of data
- You make better calls after a break
- You guess instead of asking questions
These insights are gold. They show you where your thinking breaks down and where it shines. You don’t need a coach. You just need a habit.
How to Start Your Own Decision Journal
Step 1: Choose a Format
Use what you already have. Notes app. Google Doc. Notepad. No need to buy anything new.
Step 2: Pick a Time
End of day works best. Just 5 minutes. After your work is done. Before you check out for the night.
Step 3: Use a Simple Template
Copy this:
- What decision did I make today?
- What did I expect would happen?
- What happened instead?
- What can I learn from this?
Done.
Step 4: Review Weekly
Every 7 days, read your past entries. Don’t overthink it. Just look for trends. Are you improving? Are the same mistakes showing up?
This is the moment when learning happens.
When Not to Use It
Don’t write about every single decision. That’s too much. One per day is enough.
Don’t write long essays. Stick to the facts.
Don’t wait until something goes wrong. The point is to track your thinking, not just your wins or losses.
Why This Habit Builds Better Thinkers
Good decision-makers aren’t just smart. They’re self-aware. They know how they think under pressure. They notice when they get emotional. They can pause, adjust, and improve.
Journaling makes this easier.
Instead of reacting, you build a pause. Instead of guessing, you build data. Over time, your strategy becomes less reactive and more consistent.
That’s the goal.
Final Thoughts: Don’t Just Decide — Write It Down
You don’t need more speed. You need more clarity.
You already make dozens of decisions each week. Why not use them as learning tools?
Start today. Write one down. Check it next week. See what it teaches you.
Most people move on after every decision. The smart ones stop and look back. That’s what makes their next move smarter.
Decision journaling isn’t hype. It’s your mind on paper. Use it. Grow from it. Get sharper every time.
