There was a time when art was truly about the expression of the self. That time was called childhood. When you become an adult then you realise that true art never reaches the masses. True art is killed by the marketing forces as soon as it is born. The stuff that is served to us in the name of art is actually a product that is being sold to us through marketing. So as an artist when you make art, don’t think about self-expression. Think about what can be sold to the people in the name of art. Think about what kind of stuff will make people interested. Make nude portraits of super models in the name of art because we know sex sells and celebrities sell. That is what Warhol did. He created art using modern marketing tactics. Therefore first learn about marketing tactics and then make art.