Fluency cant be learned. Look at the studies on success of adult speech therapy. There is a moderate increase of fluency after doing it, however studies show that increase drops down over the course of years after doing it and you basically at square 1 again. The studies also show that adults with severe stutter don't even get that. Speech therapy has been mostly a failure for them. I am not saying don't try it just don't expect you will be cured. They will even say to you in speech therapy that they cant cure you. They just give you some tools that can be useful. They only ones that get a huge benefit from speech therapy are kids. Speech therapy in kids have been proven to work very well. Adults not so much