Amy,
you live in my hometown!

What a small world. Are u originally from JC? Where did u go to school? Elizabethton? Anyway, I live in Orlando now and havent been home in a long time, but hope to visit soon.
Trust me when I say this...no amount of studying could prepare you for everything u are gonna get on the exam. You have prepared yourself wisely by doing practice questions, etc. You also have to realize there are like 15 or 25 pilot questions (questions that dont count against you--they are only to see what various states/schools are teaching students---except u dont know which ones they are).
If u take your time, read each questions slowly and carefully, then read every answer (dont just jump to the answer u think is right first, consider each answer). You can usually easily throw out two of them. Then sit and think about the two answers u have left and pick the best one. Never change an answer unless you are absolutely sure its wrong bc if u dont know for sure, your first instinct is usually right. If u get anxious or tired, ask to take a break, go to the bathroom, wash your face, walk around a bit, stretch, get a drink of water. Then go back and knock it out!
Good luck, you will be fine!