I’m really sorry you went through this, I get it. Both of my parents are narcissistic and my Dad has anger issues which caused a pretty stressful household growing up which made my stutter worse. My Dad never gave a fuck and my Mom did everything she could to keep the family afloat. Keep going, what you have to say matters and don’t let anyone diminish your self-worth. We’re all incredibly smart and have something to offer to the world, regardless of how we speak!