Do you know what the most important rule for personal finance is? Well, it is paying off debt. If you have debt you should pay off immediately, and if you do not have debt, no matter what you never take a debt. When you are debt free, you will be able to save and invest to improve your financial health. When you eliminate your debt, your financial burden will go down thus allowing you to save and invest even when your income is not much. Since debt has higher interest compared to earned interest in savings and investment, you need to emphasize debt repayment for long-term financial stability.