Nursing school is very hard... It's nothing like you are used to. I have been where you are presently and I know what you are feeling. Your fear and anxiety are legitimate, however they won't help..you must get rid of it if you want to succeed. You need to tell yourself that you can do it just like others before you did. Your GPA doesn't really matter, all you need is to pass the classes. To pass the classes you need to calm down, listen, observe, parctice, practice, practice, memorize and master...:wideyed:..Yes! Competence is what matters..GPA comes next!!
I truly believe in the power of practice..it helps me be confident with procedures and takes away some of my fear to commit a mistake. BUT, also keep in mind that Fear is healthy too. The fear of causing harm will help you be more meticulous. For instance, I am paranoiac when it comes to meds...I am always scared to unintentionally hurt my patient, I always "doubletriple" check my "rights" before I pass the meds. I feel like I can never be too cautious whit that...I suggest you do the same. Try your best to AVOID those errors that can be avoided!!! the rest is up to fate.
I wish you the best of luck:)