LPN school what to expect?

So I will be starting An LPN 15 month associate degree program on June 30th. Orientation is the 25th. I am really excited but also very nervous because I don't know what to expect. I started college two years ago and went from a Pre-Med Major to Psychology to Criminal Justice and now back to Nursing, hopefully this time around works out. Im scared for the Anatomy classes, first college biology class i took i failed and wasn't this hard. Any tips from people who have done the program or graduates. What helped you during school that made you successful?? When and how did you start preparing for The NCLEX. Any feedback will be appreciated. Also anyone here going to ATA College ?? In louisville, maybe ill meet some classmates before orientation!!!