my stutter comes and goes too, depending on how i feel mentally. right now its back with a vengeance and its affecting my performance at work. don’t know if this actually works but i was thinking about this same question today. one of my coworkers is super outgoing and good at talking to people/making conversation. i thought to myself, if i just pretended to be her, would i be able to fluently talk to people? haven’t tried it yet but i’m curious too.