Worked a lot as a child and barely played. Missed out on lots of personality development. I have more free time now and I want to play, but I don't totally understand how.
I was told when I have something fun to do, learn to fail the marshmallow test and just immediately eat the marshmallow. I feel paralyzed. I'm used to playing only if I'm invited by someone else to play, and I want to play more when I'm alone.
So far I sometimes draw and read a fun book. Both usually make me anxious, but they bring me feelings of accomplishment.
You might benefit from trying D&D. Play online with anonymity if you want, and the game itself has a bit of structure to it so you can start with that and kind of ease into the more freeform aspects as you get comfortable with them.
I've played like 3 rounds of Warhammer in person and the rules were confusing. If D&D online makes more sense I'm down to try.