Cool down and relax, you'll be fine. Most schools, require a 75% to 80% average (i.e. 2.0 to 3.0).
As students, everybody is focused on GPA, tests, etc. truthfully, there are some very book smart nurses, who couldn't handle two weeks in certain clinical settings.
There are three kinds of people.
#1 - Booksmart only, and suck in the clinical area.
#2 - Not booksmart at all, but clearly get the whole picture (most reffer to these as test anxiety people), they have been some of the best I have seen in the past.
#3 - Booksmart people, who can apply it in the clinical setting.
My point? GPA's when done and passed boards mean absolutely nothing, other than to improve self-esteem. You will be fine!!!!!!!