Speech therapy used to help me for a couple of days after a session but after that it would get worse then it was before the session. The best thing that helped me was accepting myself as a stutterer and working on reducing anxiety about stutter. A stutter can't be cured. It can sometimes be masked by techniques so some people won't notice but you'll always have it. Everybody stutters sometimes, most people just don't do it enough to be considered a stutterer. And they don't think about when they do cause its so rare they just forget about it and move on. Stuttering is a disability and you have to learn to live with it. The more I work on reducing anxiety around stuttering, the more fluent my speech is.