credit score below 600

I just saw my credit score is below 600. What can I do to improve? Help!?

I can not open more credit lines to help increase, so what can I do?

The easiest way is to pay your credit card debt. Try to maintain its rate of use of debt to less than 30% and even less if possible, the smaller the better. Review your account statements and determine which accounts are at a high rate of use: Example: Your balance is $ 500 and your credit limit is $ 1,000, are in the 50% level, which reduces their score, to pay up to $ 300 or less and increase your score. DO NOT use the card again, to obtain a balance of $ 0. Once paid, then pay more on your other accounts. If you maintains its use of debt in the total number of accounts at 30% your score will rise a little. And, do not pay late or miss a payment only, which can ruin everything you've done to improve their scores. And do not close accounts all history is lost (which represents 35% of your score. I hope this helps answer your question.