The truth is, most people, and I mean absolute vast majority of us, don't have any "passions" in the true meaning of that word. That term was reserved to a very strong, often uncontrollable emotion/desire, but in its current use, it has been diluted to be just a synonym of a hobby or interest.
You can be passionate for anything. I.e helping children may be one of your passions and if you do this, it is fulfilling but I doubt it creates much money. Often passion and what puts food on the table are not aligned. Passions should be done with no pressure and once you are pressured to earn money, it becomes tiresome.