Seems to me you may be looking for a "fix" - in which case I must inform you that there's no known cure for stuttering. Not quite sure what you're expecting, but bear that in mind. You can work on managing your stutter, however. For that sort of thing, you'll have to visit a speech therapist (ideally). Also, it might not even be stutter - there are various ways in which speech can go haywire (so to say). Be sure to get it checked out (for a proper diagnosis). Finally - and again, I'm not quite sure here - maybe you're just describing anxiety in general. It's hard to tell. But that would be a different thing altogether.