You should be able to document your income, expenses, and (hopefully) savings every month. If your income minus expenses is a positive number, you can relax a little. You still may want to work on your budget so you can save more for an emergency or retirement. If that number comes out negative, you could be in big trouble. Spending more money than you make means you must rely on credit. In turn, this means you are setting yourself up for more trouble because those credit card payments will get higher every month.
Tip _ Allow for Savings _ It is always a great idea to plan to save a certain amount of money each month. This can be the beginning of an emergency fund so when unexpected expenses come your way you don't have to reach for your credit card. This is an important step to getting and keeping yourself out of debt.