Or, to quote PG: "That's what leads people to try to write novels, for example. They like reading novels. They notice that people who write them win Nobel prizes. What could be more wonderful, they think, than to be a novelist? But liking the idea of being a novelist is not enough; you have to like the actual work of novel-writing if you're going to be good at it; you have to like making up elaborate lies." (http://www.paulgraham.com/love.html)

The real trick is to find a job, who's work you enjoy.