On writing, Neil Gaiman has his set of rules. The main rule he suggests is –
The main rule of writing is that if you do it with enough assurance and confidence, you’re allowed to do whatever you like. (That may be a rule for life as well as for writing. But it’s definitely true for writing.) So write your story as it needs to be written. Write it honestly, and tell it as best you can. I’m not sure that there are any other rules. Not ones that matter.
Write your story with enough assurance and confidence. How long before one finds the requisite assurance? On a different plane, life seems to be a search for that assurance. Not just in writing one’s story, but to even imagine that one has a story of his own.