Never give up. Keep on writing. Some of the greatest writers had a hard time getting published. Don't make publication a measure of how good you are. Create your own standards; constantly improve your craft; polish, polish, polish. My first conventionally published novel "McCarthy's List" was rejected by 250 publishers--perhaps every publisher in the world at the time. I took it back and revised it 12 times on a typewriter.The next time I submitted it, 12 publishers bid for it, and Doubleday published it. It was reviewed in the New York Times, sold well, and got me a movie deal with Warner Brothers. In short: keep clicking those keys and never give up.