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.
Deal with Your Debt. Few people get far in adulthood without accumulating some form of debt: credit cards, student loans, car loans, and mortgage payments are common. In fact, debt can be a good thing (who has the money to buy a house outright?), but the key is to use them wisely. Credit cards and other forms of debt can be an essential part of your financial toolbox, but you must exercise care when using these tools. Understanding the difference between good debt and bad debt will go a long way in making sure you create and maintain a good credit history.