I’m studying in college too and I had that same fear, tried different medications (asenapine, propranolol, cannabis, xanax). Xanax has really worked for me, presenting is not a big deal anymore. If I use xanax and read from notes, I dont stutter at all, and if I stutter, it’s easy to overcome it. But don’t use xanax too often or you will build a tolerance and it becomes useless.