I need to get out more
I haven't had in-person friends since shortly after I graduated from college - call it 2009, or 14 years ago. That's nearly a third of my life.
But all of my social interaction is online, with the exception of doctor appointments and my family. And with the exception of work meetings and a couple hours' worth of Discord TTRPGs on the weekend, it's all text-based. I don't really even remember how to Go Out And Meet People, and to be honest I was never really good at it to begin with; all my in-person friends in college were people I had classes with or people in my dorm (and thus a built-in reason to get to know them) or their friends.
And given my strong reaction to rejection online, I worry that going out with the intent to make friends and then not succeeding would be even worse - and that I'd take that as an indication that I shouldn't even try (which is something I'm still struggling with, despite my best efforts). So I tend to talk myself out of it before I even get started.
Something to work on, anyway.