Hi sarahtruan,
Assuming that you took this CAT under realistic conditions, with a score of 450, you're closer to 500+ than you probably realize - so you need to really analyze your performance to determine WHY you're getting questions wrong.
Here are some basic questions that you should look to answer after taking each CAT (and the more exact you can be with your answers, the better). After reviewing each section, how many questions did you get wrong....
1) Because of a silly/little mistake?
2) Because there was some math/verbal that you just could not remember how to do?
3) Because the question was too hard?
4) Because you were low on time and had to guess?
5) How many Verbal questions did you 'narrow down to 2 choices' but still get wrong?
GMAT assassins aren't born, they're made,
Rich