I didn't take a review course either....I also used Saunders and the HESI.....I used the CD's and did a system a day for 2 weeks, took the weekend off and on Monday, passed NCLEX the first time.....if you average between 60-70% on the CD's, you will be just fine..... Another good resource to use is the review notecards you can buy at any bookstore (they are on a large silver ring), they are convenient and helpful.... GOOD LUCK!!!! Remember, the light at the end of the tunnel is not a train....