I’m 18 and I feel like I’ve accomplished nothing in life

I’m a very short (5’8) autistic person and I’ve been bullied my entire life. When I was a kid I did everything I could to fit in. I put a lot of effort into my appearance. I’m in the gym every day trying to get bigger. I get my hair done every month. I wear nice clothes. The list goes on. Still I’m just treated differently for being autistic. I’m an outcast. Last week at my first day of college, everyone was talking to each other and forming friendships. I was by myself. I don’t know how to talk to people. I’m just a weirdo. I feel like if I could just fit in for once in my life I would be happy. It’s my birthday today and I’m spending it alone. Doing everything by myself. I won’t get any presents from friends since I don’t have any. I might get a present or two from my family. But that’s it. I get invited to no parties, I don’t get invited to hangouts. Nobody wants to be my friend. I just wanna be happy.