It's not your mouth, it's your brain.

It's not your mouth, it's your brain. At different stages in my life I met people who sometimes stuttered, and they did it easily, carefree and unconsciously. Without holding back. While I was doing everything I could to avoid stuttering and it still kept blocking me. The difference between those people who sometimes stuttered and me was that they did not think and therefore did not act like stutterers. This helped me understand what the real problem was and thus overcome the stuttering.