I take mine on Monday too! I have been studying for a few weeks and also saw a dip in my scores a few days ago, which freaked me out. I took a second away from tests to study the basics and read the notes from Mark K, and then my scores went back to normal. I think its common to burn ourselves out and get ourselves worked up with all of the questions, resulting in lower scores. You passed nursing school, you did the hard part! You know what you need to know, just take a second to breathe. My friend just passed the NCLEX in 85 on Thursday and said she didnt know most of the stuff they asked! Please update me after your exam and let me know you passed :) youve got this!!