It is important to become independent before you get married.
Far too many people (especially women) get married with the belief that their spouse will support them.
This does not only have the potential to cause resentment between a husband and wife but it can cause serious damage in the case of a divorce.
Imagine you are financially dependent on your spouse and they decide to leave you.
You will be left with no money and no valuable skills or qualifications. Thus you will probably have to move in with your parents and start from scratch.
Before entering into a marriage, both people should be independent on all levels.