im 16 years old, also with a stutter. check out Ken Sema, he's a footballer who also stutters, listen to one of his interviews. You've got to accept your stutter and work with it, a major thing i experience is that i stutter around other people but not in solitude. Its all about confidence, build that up and your stutter wont be a problem, but that takes time. Even with a stutter, i participate in public speaking opportunities in our high school, and even after i mess up badly, i just keep going, and thats really all you can do, get speech therapy and speak as much as you can. Hope this helps, from one stutterer to another.