Iv took mushrooms plenty, acid, DMT...really iv tried every drug available and I still stutter. I find it's more about how u feel at the time, like if u feel confident and not stressed or anxious it's not so bad. So I mean if a substance has u feeling good like that it's likely to help, but I wouldn't say that it cures it. Xanax is a wonder drug for sure just nobody wants to write them for most people. However if u have them for a while and then run out and can't get more u could have a period where it's worse than before u started taking them. However, I have been on a good stretch for about a week which has been nice and I think before it started I happened to take a small dose of psilocybin gummies, equal to a micro dose I'd say..not sure if that if it's related. So idk, that's just my experience.