I got rid of mine within the past year through self-hypnosis. I've had a bad stutter for most of my life. I recommend hypnotism. You could find an experienced hypnotherapist who's successfully cured stutters before. You could also do it yourself, self-hypnotism is like meditation with extra steps, it's not difficult. I recommend this personally, mainly because I doubt any hypnotherapist would be skilled enough to permanently cure the stutter in a single session. I'll post a self-hypnotism guide on this sub that worked for me.