Final Wednesday - HESI for FNP

My final exam is Wednesday we are taking the HESI and it counts for 45% of our final grade, I am terrified of taking this even more then the thought of taking the real boards, if I fail then I need to wait an entire year before I can take the class again.
Anyway my question is, those who took practice exams and scored low did you still pass your boards? I am an A student 3.5 GPA and can't seem to get a decent score on any of the practice test, what the heck am I doing wrong?
UGH