Yes - if PV is willing to take your money after sitting for the NCLEX, you did not get a passing score. PV is required to pass the results to the PA BoN within something like 24 hours after the exam, so you can check the BoN website - if you passed, it will say you have an active license and if not, it will list your license as pending. I think the BoN stipulates that you have to wait 45 days before you can reschedule after failing.
As far as studying goes, it will vary by individual. I prefer an intense but short review, so took the week off before the exam and studied for 8 - 10 hrs per day. I had an ATI review book (my school included the ATI 3-day review class but I could only attend the first day and did not find it helpful) that I used a little but I signed up for the Saunders on-line review and mostly depended on that. The 30-day review was something like $50 but there are more expensive and longer alternatives. I just did the review questions and practice tests along with a little studying in the ATI review book. It must have worked because I passed but YMMV.