Just do stuff. Just do it. Five things a day. And do it everyday. I have never known a publisher who had a quality book and who believed in it and who followed the Five Easy Pieces rule and who has failed.
Most people fail because the just get discouraged and give up.
It's not the ones who have the best products that win. It's the ones who work the hardest. Take the Chicken Soup books. There is nothing special with these. Most of them are borderline terrible.