When I did smoke (or drink), my stutter generally got better. I do not think that marijuana or alcohol had any affect on my stutter, just my overall confidence levels, and that’s what made my stutter better. I neither drink nor smoke now and my stutter generally is much better than it used to be because I am much more confident and comfortable with myself. That, however, is the product of years of hard work and putting myself in situations that made me uncomfortable.