To begin your studying, just use ONE (1) book and stick to it. Don't scatter your mind using 10 different books, then you feel you haven't reached anywhere. 1 Book, stay focused and you can see your progress and it will in turn encourage you to keep studying more.
Make a plan. Cover system by system. Saunders is very good. For example if you use Saunders: Do the questions at the back of the chapter first in a manner as if you are sitting in the nclex room and giving your exam. Don't check the answer. Do the exam like you are sitting in your classroom exam room. And then after you finish all those questions. Take a different colour pen or pencil and grade your answers. All the wrong ones cross them and write the correct answer number. And then grade your self as to how much you got in your exam. For example: 20/50: it shows you where you stand. After this, re-read the questions one by one(all the ones: got wrong or right) and look at the answers with your answer sheet. Read the question: then read all the answers again and then look at your answer sheet, and read the correct answer and read it until it gets into your head, the correct answer and question. And then go back and read the the rationales for those answers: all the rationales for a,b,c,d. Repeat this for all the answers. Take notes on values and things that you think are important or you think you need to jot down to remember.
Some people do better writing and studying. In that case, have a notebook and write down while studying those rationals.
After all your questions are done, you can review the content in the chapter as you need. Or if you think you are completely clueless about that system and read and understand the content well.
Do like this for all the systems in your Saunders. After you are finished with your Saunders questions, move on to the CD questions on Saunders and do the same way.
Then, if you still have more time venture out into other books and questions. But to begin with just stick with One (1) BOOK and not over stress yourself. Seeing your progress helps you put in more effort.
Good luck for your exam and to anyone taking the exam.