I'll admit to being lost on this topic. It's supposed to be about writing secrets and why they're secrets. Specifically, my writing secrets. I'm not sure what my writing secrets are. Writing is an intensely personal activity. What works for one writer, isn't necessarily going to work for another. They may seem secret because people don't necessarily talk about them, not that they are avoided either.
For me, I can't start writing until I have a title and the main characters (heroes, villian(s), and a secondary character or two) written down with details and photos. Beyond that there are a few things that are talked about sometimes. And some things that are talked about more often.
It takes a combination of talent and tenacity to get anywhere in this business. If you are easily discouraged or take everything personal, making/staying is difficult at best.
And, just like the print side of the business, this is a really small business. Kind of like a small town where everyone knows everyone.
Oh, research and revision are needed.
This is a business, yes it's art or writing, but it is still a business. The writer wants to make money and so does the publisher, professionalism is needed.