I can relate to this. Earlier in the year weed worked wonders for me when it came to my speech. But after a while dependency kicked in, also my tolerance for it went up over time. I found myself having to smoke way more for it to have the same effect as when I started. Jump a few months and it's a coping mechanism. Not to mention the mental fog/ depersonalization I experienced in my last months of using it regularly. Personally, it was great until it wasn't. I've since taken a step back from it(for about a month now) and would rather actually facing my stutter and improve rather than having to numb myself constantly. Keep in mind you might have a difference experience 🙂 I was just sharing my journey. Hope that helped.