I'm 17 and I'm starting university this year, haha. I'm nervous, to be honest, because I've been avoiding friends for years just so I don't have to talk to anyone. The only thing I've set out to do is for everyone to know I stutter on the first day, not to be ashamed of it, and to trust in their acceptance, I don't know. I've been living the life you describe since I was 14, when I started stuttering and stopped talking. So good luck with yours, and if the same thing happens to you as me, that you're introverted, etc., it's hard to change anything, especially because you're already perceived that way. But if it's any consolation, this year I made friends with a girl who doesn't stutter, but she didn't speak at all, much less than I did. Damn, I had to force the words out of her mouth when it's me who always has to be forced out of me, hahaha. But what I mean is, there will always be people with the same kinds of problems as you. Try talking to those kinds of people, I don't know.