Try a different speech therapist. Not much else you can do. People are gonna give you shit for it, it is what it is. That being said, most people really don't care because most people aren't assholes. I get what it's like, but regarding relationships, here some advice. Work out, take care of yourself, do all of that. It helps. Girls will likely show interest. It happened to me, I just mostly used stuttering as an excuse to not reciprocate.