I had the same issue as SS for a while and it wasn't until recently I started undoing it. I'm pretty weird, so I got shit on for that growing up, and since I'm pretty smart, I would tell myself I'm better than others for being smarter so I could feel good about myself and not lame for being weird.
I got to a reclusive stage when I was really into Zen, Buddhism, and metaphysical psychonaut stuff and turned my nose up at anything earthly or "generic human stuff" like work, school, family stuff, etc. If someone talked passionately about anything that wasn't mind-blowing, I would internally roll my eyes. Eventually I found myself jaded with my social interactions, despite intentionally seeking them out.
I figured out I was defining myself very rigidly by how I was different people, while at the same time seeking connection, and that's why things weren't working.
I decided to let go and now I gradually find myself enjoying smalltalk more and more, but it's not like I magically like everyone to the point I'd hang out with them more than once. I decided to only express things that come from love, and that means sometimes I don't say much of anything, like when I hang out with suburban stoners that sit in silence listening to repetitive rap that's all about money, sex, and drugs. This little rule has helped steer me towards more fruitful friendships.
I'm pretty friendly and meet people pretty easily, but my judgment and pointless ego made the interactions have less life. One thing that really helps is to drop strict ideals of what I want and let myself be surprised by people. If I'm constantly looking for little ways everything is boring or formulaic, or trying to make a certain thing happen with a person I don't even know, it's probably not going to work since (good) conversation is spontaneous and creates novelty for both parties.