Memory is generous to our decisions and harsh to our results. A decision log fixes both by recording what you decided, why, and what you expected, before you know how it turns out.
Use three lines. The decision. The reason. What you expect to happen. Then, when results arrive, add one more: what actually happened and what you would do differently.
Over a few months, patterns appear. You will see which kinds of decisions you tend to rush, and which you tend to delay.
Setbacks stop being embarrassing and start being data. That is how progress becomes something you can share, and something others can use.