I agree with Nurse_ . Have you focused on your weaknesses??? Most of NCLEX studying is based on what you are struggling with.
To answer you question about the NCSBN program, it is a very comprehensive program to study for as little as three weeks to two months before the exam. I used this program a month before the exam, because it is like a mini nursing school
course for NCLEX review. When I did study for the NCLEX, I had about 2.5-4months to study because I had to finish up required courses in order to get my degree. I made sure I broke up what resources I wanted to study from. I first used Kaplan for two weeks, Pharm flash cards for one week, PDA for three, Exam cram for one, NCSBN for three, Saunders Questions for two. Then straight review questions because I had to wait two more weeks to get a date that wasn't closed, but just reviewed lightly. I also took the exam during the afternoon, where I was more relaxed.
I think if you broke down your studies as I have done, then you have a great chance of succeeding. If you have weaknesses that you haven't covered, then I suggest you focus on those subjects ASAP. You have one more week. Good luck!