As I am approaching 40 I don't have a lot of meaningful things to add, maybe job hopping earlier (that would be late 20s) would have been beneficial for $$$ but

As I am approaching 40 I don't have a lot of meaningful things to add, maybe job hopping earlier (that would be late 20s) would have been beneficial for $$$ but I optimized for happiness. I do regret not taking up teen favorite outdoors activities (mountainbiking & snowboarding) again sooner (only did at ~33, would have had the money and time to do it 5 years earlier). Overall I think I did everything in this decade that I had missed out in my 20s due to studying and working too much. So maybe just don't think you're too old to behave like a 20 year old. (I actually do think I am too old and heavy to start skateboarding again, but I am prone to falling and hurting myself, so that's a personal problem, not an age problem.)