Do what you are most passionate about! Whether you make money or not! You will be happy and eventually you will make money. Maybe lots of money.
Agree.. most of the successful people always do the work or thing that they love or most passionate about. In earning money it is best if you love the work that you are doing and not doing it because you are being forced. If you love what you are doing then the money will follow because if you love what you are doing you can easily turn it into a business like others does.