With regards to guiding on how to pass NAPLEX, I think this thread will help you have extra resources with good insights:
http://forums.studentdoctor.net/threads/passed-naplex-and-heres-how-i-did-it.1119242/
http://forums.studentdoctor.net/threads/yes-yes-naplex-depression.1017614/
I would strongly recommend using Rx Prep book + quiz bank. I went over the entire RxPrep book. I think that's the reason that I was able to pass. My score wasn't that high. It's barely reaching the average, but hey, passing is passing is passing. When I did the quiz bank, I tried to cover every chapter except maybe drug interaction(not because it's not important, but because I just hated this chapter). I repeated the questions multiple times for dyslipidemia, HTN, angina, HF, calculations, anticoagulations, maybe some ID. I didn't have time to go through the entire HIV, oncology, and DM, so I hit the main points for each of them. I kept getting concepts mixed up, so I made my own notes, but it didn't really help (because it was too late....I would recommend creating 1/2- one page short summary of every chapter so that you can refer back to it quickly. You won't know everything, you just can't. Don't make more than two pages. That's another list of things that you have to look at other than 1000p rx prep book. I just know it from my experiences, you will be overwhelmed and there will be unnecessary stress) if you can review the whole book multiple times, that's fine, but for me, I was running out of time, and I didn't have time to look at the book second time around. I really really wished that I made my own summary notes for each chapter....it was my biggest regret right before the exam.
For calculations, I didn't do SDN questions. I quit after doing three problems or so. I thought it was an overkill compared to RxPrep quiz bank. But if you feel like you'd be better off doing it, I would tell you to do those questions.
I see threads that a lot of people only study for like 2 weeks or so. It's awesome they can do that. I'm such a paranoid that I couldn't do it, but if I were to be a less of a paranoid, I would have spent two weeks of intense studying on main disease states, then given myself a shot. The longer you prepare the more you will be worn out. You won't remember everything, but you have to remember on the top of your heads for common drugs that you would see every day in a retail, etc. I panicked a lot for the last two weeks and I couldn't study properly. I guess having a positive mind set and being able to control your emotion can play a big role in NAPLEX. I scoffed at this statement, but now I kind of get it. Remember, NAPLEX is a minimum competency exam. Even if you take the exam right now, you could probably pass the exam.
Wish you all the best with your exam and I hope to see you over the pharmacy counter as a registered pharmacist.