Will I actually be bringing everything I need?
Did I actually do all of the pre-course work I was supposed to?
Will I show up at the right place?
What do I say?
Will I actually be able to drive safely?
Will I actually be able to pass?
Will I get enough sleep tonight?
Will I wake up early enough tomorrow?
Will I be physically well tomorrow?
Suffice to say: it's a big deal and I'm so worried I'm going to screw up big time, somehow.