I went to different speech therapists at different stages in my life. They did have a lot of techniques that helped me with my stutter like breathing through the nose and speaking on the exhale also to think before I say it. I would say that my stutter was largely connected to my anxiety and fear of it. There was a lot of improvement in speech therapy, I could feel I was getting better in speaking some cases. I think my only issue with speech therapy was that as I got older into high school I was frustrated by the books that the therapist used I felt that they were more like children's books who were learning to read. It made me feel in some way inadequate that I was some child's level in speaking.