Reading (it takes the right book), stargazing, fixing things, breaking things when I thought I was fixing them, hiking, sitting on logs, weed/music, biking, dancing. It's mostly stuff I did or was exposed to when I was young. It's all most average skill levels at best. At some point, I realized my time is limited and it could end any moment. I stopped worrying about being maximally productive and stopped worrying about not maximizing skill/avoiding things I'm not good at. Do whatever brings you joy. I've tried to spend less time bumming on my phone since it's so easy and so empty.
I liquidated my investments years ago for a cash need. It's cool to be part of some money-making scheme, but I'd say in total, I don't miss addiction of checking performance of the rollercoaster through the casino. I felt bad when it was red, felt like I didn't bet enough when it's green. It never actually moves fast. Things improved when I limited myself to checking weekly. On average, the line will go up and to the right. I'll feed index funds eventually again, but for now, I'm just holding in a high yield savings.