I'm inclined to think that's in my case it's anxiety and discouraged feeling that I will stutter on the word I want to say. Then it feels like panic so substitute words would not help. When I'm at home, I can say everything aloud what I wish. Therefore I think that in my brain is definitely hereditary inclination to stutter, if I could manage to feel confident, then I would not totally blocked up with my face contortions. I'm retired now and through my life had totally fluent periods or only an occasional block. I stopped stuttering when I was in boarding school during my high-school for two years. Then my family moved to the town and I was in not a good environment. I couldn't believe how I changed into an anxious wreck in a very short time. Now I'm focusing on reading aloud or repeating words at home which I couldn't say to people. I know I have to keep doing something for a whole day, humming mantra, diaphragm breathing, repeating words aloud, humming when imagining my blocks. I didn't think that I could not talk in older age. It was the opposite I was always believing it. The pause in my social activities during pandemic made my social anxiety inside me to build up. I put on a smiling face but I feel panic to attempt talking. People are nice and don't ask me too many questions because they see the intense struggle to get out the answer. To summarize the story, I understand that I must relax myself. It seems to me selfish that I'm extremely anxious about my speech. I feel that's the negative autosuggestions, in my case. Like negative self hypnosis. So I will work on a positive self hypnosis. I wish to all young people all the best, relaxed minds.