I was a writer. I just wasn't a very good one. I was lucky enough to have a playwriting teacher who told me that I'd be a better actor than I would a playwright.
Don't hit people; don't let it get you too angry; remember that everything you do can and will be used against you. And take a breath and have some perspective.
Hamlet is a remarkably easy role. Physically it's hard because it tends to be about three hours long and you're talking the whole time. But it's a simple role and it adapts itself very well, because...
I didn't think that a career in theater was very realistic so I thought the only thing I could make money doing and still be somewhat artistic was, god help me, advertising.