ISO: Hobbies/passions to replace fricking tons of women??

I was pretty nerdy until my mid 20s and just had a couple long-term monogamous relationships. I played lots of video games and did random nerdy things like build model airplanes.

Then in grad school, my long-term GF broke up with me and I decided to get my life together and I had a major glowup. I started dating tons of women, mostly from dating apps, and I was pretty good at it! Good looking, high achieving women doing cool, sexy things. My post-grad school job was in a major city with tons of hotties and I also traveled around the world a lot for work, and my main off-work activity basically became fricking women. I got kind of addicted to this. I liked it, partly because chasing and having s*x with attractive women is per se great, but also there's enough of a challenge in it that it's not a foregone conclusion that I can frick some hottie, and with work/dedication you can get a lot better at it.

Eventually I met my wife and now we have a kid so obviously I cannot do this any more. But it was so much fun! I need a replacement hobby that has (1) challenging myself, (2) has difficult but achievable milestones/objectives, (3) feels like there's some progression/you can level up, (4) takes some innate talent + work to be good at.

Some things that I've tried that don't really work:

1. Video games. Fine, but I don't respect other video game players enough to care about beating them.

2. Music: I'm decent but I feel like there's no real space between fricking around in your garage (which is not serious enough for what I want) and being a professional (which is way too serious/I'm not good enough)

3. Running/biking/sports: Fine but I want something that is a little more intellectual too.

4. Ceramics: It's all foids, who can be motivated by this??

5. Trolling online: It's fun, I think about making a big anon twitter account, but I want to feel like I'm doing something of value.

Any suggestions???