I am still at that stage where I make three mess-ups for every one painting that works out to marketable quality.
But that's very good! Vincent van Gogh made dozens of paintings of that silly little pot of sunflowers and couldn't get any right. You should of course aim for higher standards than that. It may also help if you change your surname to Tshabalala or something.
Vincent Tshabala? Sipho van Gogh? Wait, Van Gogh's already taken: believe it or not, there is an artist by name of Van Gogh already working in South Africa, namely the botanical illustrator Joan van Gogh. And yes, she's related to him.
Apart from the excesses of absinthe and the thing with his ear, Vincent is actually a major inspiration for me. Like him, I came to art comparatively late in life, and without much natural talent for it. And like him, I make slow progress by means of lots and lots of failed painting. :-)