Wanted: ADVICE!!

First time blogger here!
I am finishing up my nursing pre-reqs at Kansas Wesleyan University, and will be entering the nursing program here next fall. I have been hearing horror stories about how difficult the junior and senior years are and it's starting to get me a little nervous- i was just hoping, with all the experience people have on this sight, that i could get some advice on what worked for many of you (studying habbits, things to keep in mind, ANYTHING...). any advice would be greatly appreciated!!