You need to meet other people who stutter. Most adults I know who stutter are married, have careers. They're living their lives just like everyone else. Their challenge is stuttering, other people have different challenges. Just imagine if you spoke the same way but didn't feel shitty or ashamed every time you stuttered. You'd be doing the same things without them feeling bad. That's what your adult like can be like, doing what you want to be success and doing it while stuttering and being ok with it.