I was you when I was 16. When I was 17 (my last year of proper school) I met a girl and it was awesome. I'm 26 and still stutter but I try not to let it rule my life. Realistically I have 2/3 of my life left, I'm not going to waste it by not making that phone call or not going for that job interview. School was fucking awful for me with a stammer but I hope you're through the worst of it. A final word of advice: don't choose your classes/courses on what one have the least presentations. You'll regret it. Don't let your speech dictate your education.