Similar to what I said to OP, I can inform you that there is NO cure. This doesn’t mean there is no hope for an improved fluency. Everyone should definitely work with speech therapist and other necessary professionals to improve the fluency and the stigma that comes with stuttering. Some people will reach a higher level of fluency, some will not. This doesn’t necessarily have anything to do with how many hours you put into this. It depends on so many different factors and ones speech therapist can explain this further and in more detail. But when you and OP say to young people that THERE IS A CURE, you are in-fact misleading and giving false hope. I believe in having the facts straight and work from that.