What's wrong with me?

I'm 22, almost 23. I’m too embarrassed of myself, I have no friends, no job. I’m starting my second higher education degree. I’m really scared of thinking about new classmates there. I don’t know how to make acquaintances, but I really want at least one person my age to talk to, hang out with, or just have someone to chat with. But I can’t even imagine it happening. I stay home and it’s fine, kind of boring, sometimes depressing, but there’s no danger or anxiety, so it’s okay. But this can’t go on forever, which is why I’m starting again, now in a different city. I’m really nervous, and my head is full of "what if…" scenarios. My parents tell me to just be myself and try to keep conversations going, but I can’t—I overthink how I come across, and that stops me from being myself.

Would I even want to be friends with someone like me? Yes, but only when I’m not embarrassed. That’s when I like myself.

I used to have a friend. She moved away and we don’t talk anymore, but we’re still following each other online. She’s married now and travels, and she’s lost weight. I’ll be honest—I’m jealous. Because I’ve never even had a boyfriend. It feels like everyone my age has had all these experiences, and I haven’t.

I still love the TV show I loved as a teenager, and now there’s a spin-off, so I still watch it and get really into it. There are a lot of things I’m really into. Is that a sign of immaturity? If I need to move forward, I can’t, because I love certain things too much—music, books, fictional worlds, soccer. But I’m not obsessed with them; I can talk about other topics too.

I feel like I’m falling behind. What’s wrong with me? How do I become "normal"?