I also started thinking if I had ADHD, but I still have one good habit surviving from single-digit age- reading books.

Despite everything, I manage to read 25-30 books each year.

And these books are always either very long novels or non-trivial, high-quality non-fiction.

I also manage to get immediate works done through time-blocking, and pomodoro (don't need pomodoro for stuff I really like).

But these techniques don't save you from being "reactive"- doing stuff that is needed right in the moment, and nothing else- behaving like primitive animals.

I can get hard, intensive work done, read books, learn hard concepts, but still lack very seriously in long-term action-taking (used to be good at this before).

Trying to solve these.

Acknowledge that there's no need to catch up to everything, and that you can narrow your interests to a few things that really interest you, and study them the old fashioned way, with no blinking lights.. just a book, some quiet time and possibly accompanied by a hot cup of coffee.

Buddhism?