Ok that was another thing my speech therapist would tell me ALL THE TIME: You CAN say this word, this letter, without stuttering. You are physically able. That is a fact. She would tell me to try to remember that in public. That was another thing that helped me. That no matter how I felt, no matter where I was, that was the truth: I knew how to make my mouth say that letter without stuttering. Not sure if that helps you at all?