I am now 24 years old and been stuttering my whole life and had multiple speech therapy classes from elementary to all the way to high school. But I stop going to those classes for some reason I can't recall why. Sometimes I wish I would had went more often those classes but hey the past is the past. I was told the same thing but with a breathing technique as well which I never applied it and still don't. I just feel like it's more of speech blocks/mental blocks than rather staying stuck on one word or one letter now a days for me. I hope everything going well in your life. Make sure to love yourself and live life to the fullest even though people might not understand us stutters, we all are humans and everyone stutters in their own ways and I think it's just part of being a human being. Let me know what has helped it your journey as a person that has a talent. Not a disability as society like to think we stutters are/have.