Your credit score (often referred to as your FICO score) provides a snapshot of your credit status. It's determined by a variety of factors, and obviously, you need to understand the components that affect your credit score before you can start to repair it. Although the exact formula used by the Fair Isaac Corporation, which compiles the score, is proprietary and not publicly disclosed, here's basically what it looks at, and how each factor is weighed:
Next, estimate your monthly spending habits for other expenses such as gas, groceries and entertainment. Create a limit, based on your income, of what you can spend in each of the different categories of expenses. For example, if you tend to spend $400 a month on groceries, try to stick to $300 a month on groceries by making changes like buying generic brands, using coupons, and resisting impulse purchases.