This might be a controversial opinion, but learning how to relax has been the best thing I have done for myself as an AuDHD person (other than getting diagnosed and medicated for ADHD). Finding activities that work for me (breathwork and movement) for switching from busy to relaxed and back was super important. And learning how to recognize when I’m about to crash earlier and earlier so I can do something about it. I also really like the concept of the dopamine dial, where you turn the intensity of dopamine-producing activities up or down depending on what you need.