Whoa there. I am NOT very, very good at this... I am still preparing for my own Step at the end of the summer. I just don't want to see people throwing away their only shot at passing the Step on the first try.
Review books are fine, but the absolute best way to prepare is to do questions. I got the plan below from another individual who did very well on his Step. It is a somewhat similar version to what I am doing, with a few modifications.
1. Read BRS Physiology for the path chapter you want to cover... do all of the questions in BRS Physiology.
2. Read Goljan Pathology for that topic carefully and memorize the charts/graphs/pictures... do the questions in Goljan.
3. Listen to Goljan Audio while following along in the text.
4. Read First Aid for the chapter carefully... do the questions in Rx.
5. Do questions, questions, questions, and more questions. Like, thousands of questions. Literally. USMLEWorld is best.
Good luck. I didn't mean to come off like a jerk earlier, but you seriously DO NOT want to take this exam until you are ready... and with the numbers and level of prep that you were reporting, you aren't ready.
"When I havenīt any blue... I use red."
--Pablo Picasso