I think this is a very old post, but to those who failed please do not give up, with the lords help you will succeed! Sometimes life puts these barriers to test us. Start studying everyday. I would wake up every morning and practice 100 questions to practice my comprehension. I would really study the rationales and try to figure out what I was doing wrong. I failed the first time even though I studied a lot, so what I did the second time was really refined what I learned. I found I knew a lot of things not very well. I also studied the competencies and really practiced the CNO modules. Study everyday and read your potter and perry!