Hey man I just graduated hs recently, stopping stuttering instantly is impossible or very very difficult to achieve if it is possible, nonetheless it takes a while till u see progress, one of the few things I saw in a youtube video is to take ur time instead of rushing because there’s no point, you’d still get ur point across and the other thing being breathwork, I don’t practice that as much but I’m sure it’d work because my main type of stutter is pausing and when that happens, the throat tightens so it helps to control our breathing to try and get the words out more fluently/smoothly. Remember any progress is still progress. Ooo also enunciating or making sure that the beginning and/or end of the word is heard. Hopefully that helps 👌