I hear you and I feel the same.
34, going through divorce and no kids.
I like my "me" time. I enjoy my routine. But after a few hours, I feel like I dont know what to do with myself. Weekends especially are a drag. All my friends are in a different phase, either busy with kids or their spouses, so cant really rely on them.
I am hoping this will get better at some point, although in my head, I dont see how.
Any suggestions are welcome. I will look into this app-Meetup as suggested,
From my end, I can only say that meditation and yoga have been quite helpful. it keeps in check the unnecessary chatter in my mind.