Give yourself a month and go all in on rejection. Aim to get rejected for a whole month, treat it like a game and give yourself points for getting rejected. The best form of therapy for trusting yourself is exposure. speak with everyone you meet, strike conversations at the most unlikely places. Be polite, make eye contact, and stutter voluntarily, and act like nothing happened. Why is this the best? Because your brain will start making new associations that there’s nothing wrong with stuttering, and not give a shit if someone happens to judge you. Also it starts abandoning your existing preconceived notions and fears about your stutter. How do I know? I did this for 6 months about 5 years back, and came out the other side a completely different person. I’m more confident, more self assured and I don’t give a F if I stutter or not…. If someone has problem I entirely stopped caring about what they think. Life has never been better