Delegate - work smarter not harder; do what you do best and drop the rest; get control of your calendar; do what you love because it will give you energy; work with people you like so your energy isn't depleted.
When I fly in a helicopter, I insist there be two sets of controls, one for me in case something happens to the pilot. I'm no expert, but I know enough to at least get the thing on the ground. Nothing scares me like the thought of not being in control.