I don’t have the same mentally as a high schooler

I hate being around the kids at my school, I used to be super immature , I would skip class and smoke and do really dumb things. Now I lost a lot of friends because my anxiety is getting to me . I sit in the library now and I hate socializing. Like when I hear other people’s conversation they’re so preppy and outgoing ... and I can barley come up with something to talk about . I don’t talk the same way they do ? If that makes any sense. I usually like to talk about meaningful topics.

I’m also not funny at all and I don’t know who I am , I’m trying to figure myself out and I feel lost.. I feel like everyone in my school is fake and I hate that we have clicks everywhere . Wtf do I do ?

I’m 17 and a senior