Break your first project into small pieces
Trying to build the whole project at once is the fastest way to get stuck and stay stuck. Instead, get one small piece working first, something so simple it barely feels like progress, and only move to the next piece once that one works.
This approach makes bugs far easier to find. I still build this way myself, one small piece at a time, even on projects I could probably rush through in one sitting. If you build everything at once and something breaks, you have no idea which part caused it. If you build one piece at a time, the broken piece is almost always the last thing you touched.
Try this today: take whatever project you're working on and write down the smallest possible first piece — something you could finish in a few minutes. Build only that piece, check that it works, and then write down the next smallest piece. Keep going one step at a time instead of trying to hold the whole thing in your head at once.