I'm pushing my comfort zone daily. I'm part of the McGuire programme. Which means it's required of me. During courses I always do at least 100 street contacts, the public speech and other set challenges. I've also worked out for the past three years and feel great and confident. This hasn't increased my fluency at all however. How severe was your stutter? I literally block on every single word. I'm glad things worked out for you, but that doesn't mean it will for everyone.