Take it one day at a time and you will be fine. After the first week or so of driving you will get used to it.

Also, make sure to contact the disability office on campus to get special accomdations for classwork, like extra time to get assignments turned in. There is nothing shameful about doing this. I was a strait A student, my advisor made me do it and i never thought i would use it, but i was cycling, really manic and i had three assignments due for midterms. i knew i could get them done, but my mind was freaking telling me i couldnt get them all done "well" enough to meet my satisfaction. So i asked for extra time in one of the classes, just the weekend, and was able to relax and focus to get all the work done without making my mania worse.

Congrats on getting into the school you wanted and good luck!