I am so happy and relieved!  My main tip is this: all of the preparation you are doing to prepare for this exam will be needed, and you will see some questions on the exam that you haven't seen in any practive material. You have no way of knowing if they're counted or not, so prepare, prepare, prepare!  

The PMBOK 5th edition should become your friend.  I also used Crowe's Pass the PMP the first time (though I used the 4th edition-I highly recommend getting the latest edition).  I suggest as many questions as possible-learn from inferring the information from practice questions.  

Good luck!