Hey good for you man. I'm pretty good in school as well. I mean like most stutterers I'm actually doing well in all areas of life EXCEPT for my social life. I don't really tell myself I'm not good enough instead I treat situations through fact-checking. So for example, If I have a test coming up I'll say "ok, I'm smart, I know the material, I do well in tests so Ive got this." And then the same applies for my social life. It's been so miserable that I can't say to myself "Hey I've had xyz success" just cause I havent. My brain will always tell me I'll fail unless I one day actually succeed.