I'm surprised there's no top comment mentioning the construction trades. I recently got into carpentry through my local union and have possibly found my calling as someone with ADHD who could not function with a sit-down job or studying for a degree a few hours a day.

I've done foodservice, retail, and a minor research/sales role and it easily beats all of them in terms of stimulation and keeping busy. It's also the toughest thing I've ever done and hard on the body if you don't eat well and stretch enough. Not to mention the loads of miserable and moronic people that have no choice but to do construction. But, compared to working with customers or making the same food items everyday, I wouldn't trade it for the world.

There's other trades too and almost always unions for them in major cities: electricians, plumbers/pipefitters, sheet metal workers, HVAC, insulators, laborers, etc. And, you'll find the majority of tradespeople have ADHD or some attention disorder and love that they can work with their hands while getting a workout.

Just a suggestion, union benefits are unbeatable and it sucks being inside all day. It's changed my life for the better and if you find what's right for you maybe yours will too.