I advice people to go for what comes first, let them go for the first opportunity they get and the one they can easily grab. Formal education doesn't prevent anyone from making money, you can be in school and still participate in any skill you want, it might be so distracting, but you can always think of a better plan to manage the two. Some people usually have the opportunity to attend to school first before they think of making money, while some people usually have the opportunity to make money first, some people are faced with both opportunities at once. I know of a man that was working and still running his BSc program in school and today he has acquired the certificate and is a millionaire as well. Everyone is not the same.