I like to feel the butterflies in the stomach, I like to go home and have a restless night and wonder how I'm going to be able to accomplish this feat, get jittery. That hunger and those butterflies in the stomach are very essential for all creative people.
Live all you can; it's a mistake not to. It doesn't so much matter what you do in particular, so long as you have your life. If you haven't had that what have you had?