I was going to write a comment but you said exactly what I was going to write. We have the wrong idea of confidence from media, usually it’s some sort of loud bravado that it’s portrayed as. Actually real confidence is silent, it’s about giving off the energy that you don’t need anything right now. It’s a sense that you are at peace with exactly who you are, regardless of what qualities you have including a having a stutter. It’s a process of building up your self esteem outside of everything else, so that your stutter isn’t the main focal point