They won’t cure it but a therapist who is experienced in stuttering ( that’s key I think - he has seen many )may help by giving you hints/tricks. My nephew has been dealing with it since childhood. I recently heard that microdoses of marijuana may help but I’m not sure of the details. When I found out more, I’ll post . I’ve watched my nephew struggle his whole life , definitely better with time . I wish you peace and anyone who has an issue with you, makes fun of you … isn’t worth your time anyway. They are the one with the problem, not you .