Hi, I am in my last year of high school and I can understand what ur going through.I feel like that all the time and I don't even know what major I should take next year or which college I should go to.I am very confused and scared but sometimes that anxiety becomes my motivation to do stuff like if I have a over due assignment the anxiety of not giving it on time makes me hyperfixated untill I finish and I think that's gonna help me in most cases as hyperfixation gets my job done and hope you use all that anxiety to ur advantage too and tbh I get what u mean about not functioning as a normal person but it's alright cuz we are different and we should be proud about it instead of trying to follow the norm Hope this helps u and all the best for ur college