I wonder - how many truly successful artists there are out there. Let's define artist as someone who makes a one of a kind product to sell. Let's define success as an income capable of supporting a person: some sort of shelter that at least has insulation; enough food to not be "starving;" enough money to invest back into their career, like buying a laptop, painting supplies, or a pencil perhaps; health insurance would be nice.
To make money selling something that you have created there are two requirements. First, you have to be making something that people want - a lot of people. Second, you have to be able to make enough of it, get it out there, and sell it. This does not come easily to anyone. Few might be so genius either creatively or in the marketing department that they find Easy Street. But for the vast majority we have to work... hard.... forever.
There are further complications with making and selling art. Artists can't sustain their creativity in a constant linear direction. We get something good going and then the muses withdraw their support and send you hurling into another direction of unexplored creativity. Try to sell THIS now. The muses don't stand a chance against THE ECONOMY. We are trying to sell the most superfluous product of human existence; adornment. You can't eat it, drink it, live in it, or even smoke it. When THE ECONOMY has spoken, all artists listen.
The artist's greatest challenge is to find their way through the pitfalls to thrive, create, SELL, defy the muses and THE ECONOMY.
All of this said, I will not be deterred and I personally know dozens of others who have chosen this path. Give your artist a hug. Or even better, buy art.