Sorry about that. 90%? Wow! Maybe they change. Mine is 80%. Is hard, lot of studying. The good thing is that you will have less classes to worry about.
Congrats! I will be starting in sept too. What I did was got the list of books that will be use. I just order my books to start reading. Hope that helps.
Ask the school for the books they will be using, that way you get the same book as your school. I'm starting in sep. too, that's what I did. Got my books cheap on amazon!