I'm going to assume you don't have to do all your pre-reqs because you already have a bachelor's degree, but the first year of nursing school is usually just that with a little added theory and community nursing classes. For this reason, you many have to endure classes like nutrition, fundamentals of nursing (like you mentioned) and your science classes like chemistry. If you don't need these, then ignore my first paragraph.
If this is the case and you really want to dive into the books, I would recommend learning your nursing assessment
and drug calculations. Inspection, Auscultation, Palpation, Percussion, etc. These all have techniques that the instructors will beat into you. The more you have an understanding of these, the smoother your assessment class will go. And it will help you understand some disease processes better when you learn them. Also, drug calcs were a problem for me since I'm a left-brain kind of learner so if you're great at math, just review. Otherwise, find a good med-calculation workbook and work on some of the formulas. That can also give you a heads up.
Overall, each school is different in what they teach so you might even be able to ask for a syllabus for your upcoming sememster and read ahead. Then if you have further questions, research a bit further.
Good Luck to you in your new career as a student and a nurse