By learning about my body and making small subtle changes I find out what I enjoy and what is effective. I'm always finessing: adjusting my diet and my workouts. You have to figure out which exercises are fun and interesting and stimulate your brain - or else you'll never keep at them.
From beginning to end I worried that Ang Lee wouldn't be satisfied with my work. So I worked as hard as I could to earn his trust because you only get a chance like this once.