NCSBN NCLEX PN Prep Course

Hi, I'm a former nursing student who took the LPN in Florida. There was a law that passed just before I graduated that enacted that everyone who graduates any nursing course after the law is put into effect, that they have six months to take the NCLEX and pass. I studied hard and took the NCLEX once last September but didn't pass unfortunately. Due to that, I decided to not take it again and instead just continue with college and studying to get into the RN program hopefully for January 2017. This past month I decided I wanted to take a shot at the NCLEX PN again just because I'm only taking one class this semester and I have already taken the TEAS test. Of course as I said before, I need to take the NCSBN NCLEX PN prep course before I'm allowed to sit for the NCLEX again. It's been over a year since I took the NCLEX and I just wanted to ask if any of you guys have taken the NCSBN course. If you have, did you think it was a helpful study tool? What other ways do you think would be a good idea to study for the NCLEX? Any other online courses I can take to refresh my memory? How about what books to get that can help study? How long did you study before taking the NCLEX? I'm honestly terrified to attempt at it again but I just feel like I should at least attempt at it again.