Today I was thinking about exercise--one of the few things I come close to loathing. Some people seem to get a strange high out of beating up their bodies and sweating and smelling and aching. I don't. I've been looking into the BodyRock.tv "home workout movement" (something that a friend of mine is passionate about), and found myself wishing for an exercise program that wasn't so hard and so long, and that didn't hurt so much.
Guess what: nothing is going to change if it doesn't hurt.
The reason exercise hurts is because it's changing something inside your body. If I want to change the size of my biceps or the shape of my abs or the look of my legs, I've got to hurt first. If you're not hurting, you're not changing. Maybe exercise doesn't hurt you, but something has to (self-discipline, prioritization, donating time, sticking it out, growing).
One more thought, "We change our behavior when the pain of staying the same becomes greater than the pain of changing" (Henry Cloud). What do you want to change in your life, and how will it hurt to do that?