My brother had a saying, which he kept on his desk around him for many years. I'm not sure who said it, I may have to try and look it up later: "Nothing in the world can take the place of persistence. Talent will not; nothing is more common than unsuccessful men with talent. Genius will not; unrewarded genius is almost a proverb. Education will not; the world is full of educated derelicts. Persistence and determination alone are omnipotent. The slogan 'Press On' has solved and always will solve the problems of the human race." This is not only good advice for artist, but for life in general.
One of the better books I've read on writing, is Stephen King's book, On Writing. It's one part memoir, and the other part, his advice--the nuts and bolts on writing. Overall I found it very entertaining. He's one of my favorite authors, so there's that too. I don't have everything he's ever written, somewhere along the way, I stopped picking up his books, but I think when I run across them at a library or books sale cheap enough I'll continue to pick them up. I'm a nerd that way.