I feel like people don’t like me and I don’t know why

I’m 24M and in college. Until a couple years ago when I started taking medicine I had extreme social anxiety. Would almost never speak unless spoken to in social situations. I’m much better now but the issue is now that I can talk to people they don’t seem to want anything to do with me. I’m not respected at all. When I’m in class, I can be talking and someone else will just cut me off and talk over me. This kinda thing happens all the time. Sometimes I say something to someone and they just don’t respond/ignore me. I can make acquaintances sometimes but it never goes beyond that. I’m always the one doing all the work and I feel like I’m pestering them. I don’t know what I’m doing wrong. Everyone in my classes seem to know everyone and immediately be texting and sending memes and talking to each other and hanging out but I’m never part of that. I talk to people. I’m friendly. But it’s isolating. I don’t know what I don’t have and how to fix it.