I paint minis, run D&D games, that kind of thing. I also make sure to do at least a little workout every day. Looking after my wrists in particular is important. I'm over thirty now and am one of the only UK illustrators I know who has never had RSI, carpal tunnel or similar, but oh boy I feel long drawing sessions in my hand and wrist now much more than in my twenties! I find painting minis very relaxing; it's a nice change from the pressure I put on myself while drawing.
There's a tendency for people to think if they don't draw literally every day they'll get worse, and I used to believe that too, but when I took a break due to burnout from working as a professional illustrator and then doing an office job for a bit, and was only doing occasional sketches every few days for fun for a few months, I found it actually improved my work.
The thing is, if you draw literally every day, you can start to ingrain certain patterns of drawing and bad habits if you're not careful and changing things up a lot and studying too. That's why a lot of pro illustrators, their work can get quite stale looking on a really long, gruelling project; they start drawing from muscle memory, prioritising efficiency and consistency of output rather than inventing each pose, expression and composition as a unique solution to a unique problem.
Regular practice is good, but be sure to change things up with things like studies, gesture drawings, media experiments, art challenges etc. so you're developing a deeper understanding of your fundamentals and a broader toolkit for approaching tricky art problems like unusual poses, expressions or angles, rather than just ingraining the same approach until you draw things a certain way every time without thinking.