I’m autistic, so it’s not a one-for-one; but some similarities to ADHD, and what’s worked for me, is exercise.
Walk 10000 steps a day and go to the gym 3 days a week and lift as heavy as you can.
Use the GZCLP program and you’re golden.
Plus, you get healthier AND you’ll look better naked.
I’ve been punching nazis and Italian fascists (as well as shooting, crushing skulls with heavy objects, blowing them up etc) in Indiana Jones and the Great Circle since around christmas.
It’s a great time.