Umm, I'm sorry, but it sounds exactly like it's working? You're getting stuff that needs to be done, done, that it's not exactly the thing you started out with doesn't really matter, does it? If you do it like this, no matter what you do exactly at any point, eventually you're done with everything.

I have ADHD and that's exactly how I manage it, I simply stopped caring about specifics and just that I did something, if I went to the bathroom to pee, refilled the soap dispenser, and forget what I was doing originally, that's just a win in my book, I refilled the soap dispenser.