I've been reading Dear Writer, a book by Carmel Bird, while writing my current project, The First 5 Years. Bird's book is excellent and if you are writing, then get yourself a copy.
I liked how she cautions about writing down the various thoughts one has about a topic, as if that is the story. It's okay to have thoughts about how you will begin a chapter, for example, but then you must take the thoughts and craft them into writing.