I had a very severe stutter, now my stuttering is much more situational. In terms of technique, when I was very severe I think it does help to work on breathing from the diaphragm and speaking at the top of the exhale. YMMV with this technique and anything else you try. I worked onnegative feelings towards stuttering, like you mentioned shame. It will take baby steps but you need to push yourself outside your comfort zone. The more fear you face, the less fear you will have. There are other ways to desensitize yourself - like voluntarily stuttering. One thing that really helped me in the beginning of my journey. Lose the stuttering mindset! "Fluent" people dont approach conversations like we do. They don't focus on the "how" of the conversation, they focus on the "what". I used to give myself peptalks. Anything to distract myself from stuttering. Like, oh this burger is going to taste so good. I cant wait to order it. In times of despair, reflect on how far you have come. Parting words, it's ok to stutter. You are not alone. Drop me a line if you ever want to chat. Edit: Oh one more thing. I never thought I would have a good job, wife or children. I prepared myself to live alone and unhappy. I have all of those things now...and I stuttered my way through all of it. Things work out if you let them.