i am 23m years old, when i was around 15 i felt the same and i still hate stuttering as ever, but i had a lot of friends, i am graduating from university in 2 months, and i was equal to many other people who dont have this disadvantage , my advice is never fear communicate with people especially who is in your age, you can be a friend with them rather than being lonely and most importantly by talking you will have the experience how to control it as much as possible. good luck and keep it up start small go to a restaurant and order food