I heard of this guy who rewired his brain and fixed his stuttering, he did simple things like using his non dominant hand for simple tasks like, brushing teeth, or eating. He also woke up 1 hour earlier on weekdays, which helped a lot. But this is the sad truth with stuttering. It doesn’t matter if you go to Harvard or don’t even graduate high-school. Chances are, they’ll turn you down either way. Good luck though. Hope this helps!