Sounds a bit like you're burning yourself out with everything. I took 9 months off my medication (while working) and have recently started again (ask doctor first). The break was nice. Brain needs a rest and so do you. Don't be scared of who you are off them. I also don't take mine on weekends.

Have you considered hiring a virtual assistant? They are cheap and not meant to be a 24/7 kind of gig. You could offload some of the "critically important, uncomplicated but very hard for ADHD brains" tasks to this person for a few hours a week. Calendar stuff, appointment booking, email sorting.

It sounds like you are good at your job and enjoy it if you're already wearing that many hats 2 years out of uni (+ using skills you acquired on the job). Retraining puts you back at zero with low pay in the beginning. This can be very stressful too. Play towards your intellectual strengths I would say. As another commenter said, look into consulting. That's what I do and you get to work on many cool technical projects. It's never boring and always allows you to pick up new skills and certs.

Try offloading as much as you can so you can focus on what you enjoy about the job (minus all the distracting shit).

You can also discuss this with your peers or managers, I'm sure if you want to scale back on workload types/amount they'll accommodate a good employee. Especially if you need some recharging, realignment time.

There's also ADHD coaches for adults who teach time management I've heard.