Also a 16 year old stutterer here. The thing I want you to know is that most people (I mean like 99.9999999%) won't care about your stutter and are mature enough to understand. You're your own worst enemy about this, ok? I've been where you're are. I used to abuse myself if I found myself stuttering too much that day, and I'm lucky I got through it. You CAN improve. The best way to do so is by calming down about speaking. The more nervous you're about speaking, the more you will stutter, the more you stutter, the more nervous you get about speaking. Do you see the pattern? You can't go through life without talking, even in the modern era of texting/social media. Talking is one of the best gifts you've been given (even if you stutter a bit), it opens the world to your ideas, what you care about.