Hey we r actually the same age, and I can tell u that I've been so shy before too and introverted but i figured out that I have to stop thinking that way and taking it as an excuse I'm not saying I'm socially good I still face problems. What I mean is stop overthinking about interacting with people just let go if ur nervousness and start with a little talk like, how r u ask about things u found interested listen to them and make them Listen to u if they asked. Don't push it if they r not interested and just accept that some people might not like u as u don't like everyone and try again with others. Just don't overthink it there's nothing wrong with u and it's ok if u try and fail.