On writing. Just start.
One morning you’ll wake up and find that this is the day and you’ll sit down and write.
Don’t think too much. Don’t worry. Don’t read writing advice, never, ever!
Don’t let anyone read it while you’re still writing the story, and don’t tell anyone. You’ll only end up getting asked stupid questions.
Don’t lose faith.
Don’t be afraid!
There are no shortcuts. It takes a while to write a novel.
And there's no "ultimate how-to guide". You've got to figure it out on your own.
Don't ask yourself why you're writing, or if it will be signed by a publisher. Just write. You're writing for yourself, not for an audience. You'll always be writing for yourself.
Finish what you're writing before you allow yourself to start something new. Always finish!
And have fun.