Too early for CCRN?

I started at my PICU in Aug 2006 as a new grad and I took two weeks off work to study for the CCRN and REALLY studied hard the last 5 days (maybe too much?). I listened to the CCRN review on audio CD, made flash cards of the concepts in each lecture (I ended up with about 150 flash cards) and I took the test a week ago and failed by 9 questions out of 150! (you need to get 70% correct to pass). I hear that Kaplan is coming out with a review book for the Pediatric CCRN in December and I think I will wait for that to come out before I retake it. The test was really hard and only 50% of it I recognized from the lecture CDs. I feel like alot of the questions threw in terms I had never heard of and were never mentioned in the lectures. I didn't have a bank of questions to practice with and I think that will help alot. Also there is a set of study flash cards off the internet from morrison media which I got and found helpful but again it doesn't have questions...
Good luck and let me know how it goes for you!!!