I honestly didn’t read it all but I saw you’re learning to code. I deal with this too but one thing to know when coding is that you’ll never remember everything. Even people without ADHD don’t remember everything. I truly struggled with this and it’s just a matter of repetition.

I would do the same and need to know what this works and why that’s connected to this to make me do this other thing. I went down so many rabbit holes and took me so much longer to learn to code. I still deal with this as well as almost every programmer.

Stick to small projects, break them down line by line and try to see what it’s doing and why. Not so much of how the entire project works but each part of the code or why a function works the way it does.