Same for me. What helped is the realization that I was trying to cater to everyone in the same document. Now I try to follow the organization outlined in https://diataxis.fr/ I’m still very bad at documentation in general but I’m less dissatisfied when I come back a few months later.

I had diataxis in mind when I wrote my comment. It's an important and excellent guideline on picking the style based on purpose of the doc.