Hello, I’m 25 now and I stutter since early childhood. My stutter is a result of birth complications and neurological in origin, so no chance of improving that. Honestly it’s tough, and I am very self conscious of it, but I managed to find great friends and my life now is happy. The best you can do is to live now, take care about yourself, teenage years are no joke and I was more stressed in 16-17 than I am now. Finding people who are decent enough to wait, to not interrupt you and to let you speak at your own pace makes a big difference. Let yourself live and focus on your mental health. I recently met a person who has stutter just like mine (maybe a little milder, but still very mich like me) and I was shocked how little actually her stutter impacted my understanding of her speech. I can’t remember when she stuttered and although I almost physically feel her struggle, it doesn’t bother me as much as I imagined my stutter bothers other people. Hope that makes sense. Sending love and positive vibes your way, you will be okay and you will find your place be it with stutter or without. Be kind to yourself