Take the Kaplan course and make sure you start from scratch. What did you use for your studies? I am no expert, but for sure you have to stop taking the test until you start getting at least a 550 on prep and paper tests. I mean it, do not attempt the exam until you get many pratice tests under your belt and perform well on them. Also, try to participate on these boards from time-to-time. This may be a long battle, so be prepared.
Anyone would like to pitch in? It's easy to congratulate those who do well. Let's try to be more constructive toward those who have the nerves to post scores like these.