Once you have a list of your expenses and your income, you will need to compare the two numbers. Your expenses should less than or equal to your income. If you have additional money after you plan your budget, you can add it to the categories for your financial goals like getting out of debt or building an emergency fund. If you have more expenses than income, you will need to find ways to cut back on your expenses. Start by cutting money from your categories in the luxury section of your budget. You can also work on ways to increase the amount you earn.
You might spend more on "wants" than you think. A threadbare minimum of warm clothing is a need. Anything beyond that, such as shopping for clothes at the mall rather than at a discount outlet, qualifies as a want. Yes, the rules are tricky, but if you think about it, they make sense.