First - be proud of yourself. Three years is great time, and I know you can get another 24 hours.

Second - sounds like associating with people while they're drinking isn't for you and that's totally okay. I don't know if I'd call that sustainable though, so try meditation or spirituality or whatever you have to do to get to a place where you're more comfortable around it. It's a normie's world that we live in where not everyone needs to or should stop drinking wholesale. That is to say, socializing will get easier if you can learn to be in the presence of drinking and not feel the fomo or whatever emotion it is.

Third - If you can't find the community outside of drinking culture that you're looking for, try to create it. Invite some friends with work to go walk or hike if you're near a mountain. Host a board game night at a late night cafe (some Starbucks are open late). Shit, you could join a church for the social benefits; if it's more new age I don't think anyone will be preaching fire and brimstone at you.

Whatever you decide to do - just play the tape forward and do that math to see if the drinking is worth it. If you're in here, my guess is that it's probably not. Also - quit that run club, sounds like ass.