You don’t have to get it all right at once. Just get the next layer right.

Trying to get everything right at once is how projects stall, because the mind judging the whole thing cannot also be the one building a piece of it. Work has layers, and each one only needs to be right enough to hold the next. The rough shape first, then the detail, then the polish. Nobody sees the order afterward.

Name the single layer you are on right now and ignore every note that belongs to a later one. Write those notes down somewhere so your brain stops carrying them. Then finish the layer in front of you.