I feel you, I has failed my LPN boards 2 times also an ha one more chance. I brought the Saunders Comprehensive book for PN. I studied at least 2-4 hrs daily and maintained that routine. I finished the book and went through it a second time, then I went to take my boards and passed with 85 questions. Now that worked for me, maybe that much studying is over kill for some, but for me, I hit the bullseye!. Be encouraged and don't quit, press forward and strong with endurance constantly and your heart desire will be granted.:)