Congrats on getting in!! I'm in Nursing 3 there, I'm not going to lie its not easy when you have other classes to take, but it is doable! But if you can get all the prereqs knocked out before you start in the Fall do so! Take summer classes if you ...
I don't study from the NCLEX books either. I read the material, any power point print outs and my class notes. NCLEX books are good to use, but do not rely on them as your only studying source.
I took A & P II over the summer and it was fine. It was a little on the fast paced side, but if its the only class you are taking you will be fine! Good Luck