How do I have fun (with friends) now? Activities! Mountain biking, Hiking, Watching a movie (yeah we have some beers), DnD, roller skating, go for a weekend into the mountains, 4x4 driving... Etc.
When I was 23 I also had 2 groups of friends, drinkers indeed, but also the sporty types, we did many things, snowboarding, swimming, walking on the beach during the night. Always something challenging. That was a nice group, I wish for my kids (and you!) to find similar groups.
Maybe find new friends, these ones will drag you down, hold you back. Find a team sport? Easier said than done, I never did it consciously, my sporty group of friends formed spontaneously because we were the only guys doing gymnastics (ironically not a team sport), we stuck together though and now, after 30 years (and I quite gymnastics some 10 years ago) they are still close friends who do sporty things together. But we also like a beer or 2.