About writing fiction, Ernest Hemingway said:
The best way is always to stop when you are going good and when you know what will happen next. If you do that every day when you are writing a novel you will never be stuck. That is the most valuable thing I can tell you so try to remember it.
He clearly didn’t have ADHD because I’ve tried that and 90% of the time, when I come back the next day, I cannot for the life of me remember what I intended to write next. What was that character going to say? What were those two characters going to argue about? Where was everyone going to go next? I DON’T KNOW ANYMORE. So I go writing down a different track and maaaaaybe much later I’ll remember what I had meant to write but going back and changing at this point would be a massive rewrite or I never recall it and it doesn’t matter anyway because the story’s off on a new direction and it’s never going back.
Sometimes the best thing you can do with advice is not follow it.