OK a little more serious.
Catchlights comments are spot on! To "survive" as a professional - meaning financially as well as artistically, is extremely difficult.
It takes a combination of passion, hard work, artistic ability, marketing savvy, and good fortune to "succeed" - financially and artistically. I think many competent professionals ended up reasonably successful in financial terms, servicing their customers in the ways their customers want. Hopefully in the process, they could also be satisfied artistically.
I know of ONE very talented photographer, very passionate, very hard working, very artistic (museums collect his works) because he photographs only for himself. Last week he was forced to leave his house. I am not sure when he will end up. He was unable to even afford reasonable housing in Mexico!
His "Problem"? He photographs only for himself. If he had only make pictures his clients wanted, he would be quite rich. If he would only listen to what gallery owners told him to do, he would not have to move out of Carmel. But he won't. He stuck to his passion. And paid the price.
But if he wanted to make money from his clients, and his clients see the type of photographs he has now, (the types collected by museums) they will not engage him. So you need a portfolio to show your clients, to show them that you could deliver what they pay you to do.