1. Write clean.
2. Follow the rules...grammar, syntax, tense, inflection, diction.
3. Break the rules or tropes customary and commonplace to your specific genre.
4. Find the balance between writing/marketing and your personal life.
5. Never follow any authors' tips on writing unless you've read their work and it doesn't make your eyebrow quirk.

Write clean and edit as you progress in your narrative. Always stop writing when you still have a little left to say, make a note of it and begin there the next time. Go back and re-read a chapter or two before beginning writing, that with your prompt from before you ceased writing will enable you to jump right back into the story.