Do your homework. If you are lacking in any of the nuts and bolts skills, structure, punctuation or grammar—study up. Also, write what you read. You can't write well what you don't read for pleasure. If it doesn't entertain you it's not going to entertain anyone else. Join Romance Writers of America. And don't say, 'I'm going to write when I find the time'—that's the most irritating thing I ever hear. Nobody finds time, you have to make it.
Nora Roberts Interview