20M and i dont know what to do anymore:(

I see my few online friends in long term relationships irl and the few times i voice call with them im always the fifth wheel in between a bunch of couples flirting and having fun. I wish i had a gf too like they all do, or atleast any irl friends to help numb the pain, I don't even leave my dorm room because im always reminded of just how lonely I am, when I see all these couples holding hands and friends having fun, and all that awaits me is going back to my room and talking to people on DC who im pretty sure are getting really tired of my miserable personality. I hate having autism because it has ruined my life:( how do i even get out of this