Yes! After my shrooms trip I just stopped caring naturally and I’m almost fluent. I still have my trip ups but I’m ok with that. I just speak and let whatever come out. I was told my stutter was neurological and a birth defect due to the tonsils in my brain stem being short or something to that effect. I was offered brain surgery and instantly turned it down. I agree with the advice of not stressing and thinking about not stuttering or potentially stuttering when you speak. Just let it flow. And definitely try not to care about what someone else thinks.