Even if you have every reason to believe so never tell a person they are not a true stutterer or will never overcome it. These exact words led me to isolate myself from my family and peers for many years and contemplate suicide. It was a very rough time for me after my SLP told me those things. Made me doubt myself and her. She even had me repeat a traumatic event for her for a half hour until I repeated it completely fluently. Never trusted her again and have had to get counseling on all the above. I’m doing much better now but at the time it was a very hard time in my life after going though all that. So please don’t make the same mistakes.