Everyone makes mistakes. The trick is to learn how not to make the same mistake twice.
I recommend investing effort in your note taking processes.
I have 20 years of experience at this point, but I only got really serious about making detailed notes a few years ago - and now I wish I'd developed that habit at the start of my career!
My goal these days is this: "Never figure out the same thing twice". If I figure something out, I write it down - sometimes as private notes (I use a private GitHub issues repository for this) but often in public GitHub issues or published to my TIL website: https://til.simonwillison.net/
I recommend investing effort in your note taking processes.
I have 20 years of experience at this point, but I only got really serious about making detailed notes a few years ago - and now I wish I'd developed that habit at the start of my career!
My goal these days is this: "Never figure out the same thing twice". If I figure something out, I write it down - sometimes as private notes (I use a private GitHub issues repository for this) but often in public GitHub issues or published to my TIL website: https://til.simonwillison.net/