Happy Birthday Johnny Depp. I feel as if I know you. You're a handsome rascal, aren't you?
Knowledge is to know what you know, to know what you don't know and to know when to let others know what you know and what you don't know.
Expect the best. Prepare for the worst. Have enough rum on hand to properly handle either option.
Relax, mate. No matter how much or how little you plan, you'll be doing whatever happens next.