Medic to RN?

Finally towards the end of the road. See a light but can't tell if it's the end of the tunnel, or a train. I am really nervous, wondering if I can make it through. I have made straight A's on all of my pre reqs but hear nursing school is a different animal. How hard is it for medics? I hear it's hard to change your thinking from an acute type medicine to more long term, total patient care thinking. How do I keep from being a failure? Most medics I have spoken with who went through the same program say it's not neccassarily hard but a lot of busy work. Any help or advice would be greatly appreciated.