Repost but Elizabeth Gilbert wrote the best treatise on writing (and by extension, creative expression) I think I've ever read. Here are some excerpts - I believe its worthwile reading the entire essay many times:
"I often hear people say, 'I’m not good enough yet to be published.' That’s quite possible. Probable, even. All I’m saying is: Let someone else decide that. Magazines, editors, agents. They all employ young people making $22,000 a year whose job it is to read through piles of manuscripts and send you back letters telling you that you aren’t good enough yet: LET THEM DO IT. Don’t pre-reject yourself. That’s their job, not yours. Your job is only to write your heart out, and let destiny take care of the rest."
"There are heaps of books out there on How To Get Published. Often people find the information in these books contradictory. My feeling is -- of COURSE the information is contradictory. Because, frankly, nobody knows anything. Nobody can tell you how to succeed at writing (even if they write a book called 'How To Succeed At Writing') because there is no WAY; there are, instead, many ways. Everyone I know who managed to become a writer did it differently. sometimes radically differently. "
"I often hear people say, 'I’m not good enough yet to be published.' That’s quite possible. Probable, even. All I’m saying is: Let someone else decide that. Magazines, editors, agents. They all employ young people making $22,000 a year whose job it is to read through piles of manuscripts and send you back letters telling you that you aren’t good enough yet: LET THEM DO IT. Don’t pre-reject yourself. That’s their job, not yours. Your job is only to write your heart out, and let destiny take care of the rest."
"There are heaps of books out there on How To Get Published. Often people find the information in these books contradictory. My feeling is -- of COURSE the information is contradictory. Because, frankly, nobody knows anything. Nobody can tell you how to succeed at writing (even if they write a book called 'How To Succeed At Writing') because there is no WAY; there are, instead, many ways. Everyone I know who managed to become a writer did it differently. sometimes radically differently. "
http://www.elizabethgilbert.com/writing.htm