Happened to me. It’s because in the back of my mind I knew if I spoke slowly and tried to control my stutter; my friends and family would see right through me. They’d know I was faking it or trying to control it. This made me even more stressed because I thought they knew I was trying to put on a show in some sense. I turned it around by being proud of my ability to put on a show. I take pride in showing off my being able to control my stutter skill.