Nursing classes at tafe start next week

I’m about to begin my diploma in nursing very soon. I am so incredibly nervous. I was a C/D student back in school with sometimes a B. I was never academically smart. Maybe it’s because I didn’t put in much effort. I am so afraid I won’t be a good student. Nursing does not look easy, it takes effort and a smart mind. I already have this weird feeling I’ll barely pass because there is so much information and so many difficult words to learn. I am scared.