It is a vicious cycle indeed, but it can be overcome! Mine is also purely psychological, and I realized pretty early on that the mere *anticipation* of an incoming stutter is what causes it. Self-confidence has put me very far in recovery:) Many people nowadays don’t even realize I have a stutter and they are surprised when I tell them. I still feel them internally, but today they are much easier to overcome. I also realize my stutter gets worse if I’m not mentally okay.