I'm stressed

Tori
I'm in nursing school and I have a final exam coming up I need to make a 81 on it and I'm their are a 100 questions their are 50 topics on it. The other day I broke down and cried and today I just feel like facing facts that I may not be able to be a nurse. I have prayed and I'm trying to keep faith. But it's like my anxiety is bad I have a 76.1 in the class I need a 77.5. I just feel like a failure