Dude I really don’t think ur stuttering is neurological go read a book right now and tell me what happens, I chase of stuttering if it’s not neurological is a inner conflict or inner disharmony in the unconscious mind with conflicting beliefs such as the unconscious says don’t talk but the conscious mind wants to talk it’s a force that pulls each other with equal force which causes a block. What ur doing is ur holding back ur speech which of course consciously you begin to control ur mouth movements otherwise you won’t say a word since ur unconscious mind doesn’t want to talk. In other words it’s a emotional hold. Don’t give up dude there’s a book by John Harrison he’s like the founding father of dissolving stuttering.