The thing I try to do isn't "wishing I didn't have a stutter" it's saying to myself that the only thing holding me back is my mind and that I can talk fine on my own. I normally think" If i didn't sutter I would be more confident" but now i try to think that it's because of my inconfidence to speak that I stutter. Good luck tho, comments like that can hurt but try not to let it get to you even if it's incredibly hard