The first thing that you've got to do is acknowledge that all this isn't your fault, not all of it. The people who have a vivid social life at the age of 24 were the ones who are taught how to socialize and modeled socialization,. So if you weren't taught those things, it's like you're blaming yourself for not speaking english. That has everything to do with your circumstances. Do you think we're genetically better at medicine? Of course not. There's no such thing. It's all upbringing.