You have to learn to rely on other people!
At work, focus on finding reliable people you can count on to delegate certain tasks to when you're snowed under. And at home as well, get your partner involved in the housework, and if you have kids, give them their little duties too.
The key: Spread your workload among people close to you who you trust. The key to good leadership is always delegation.
You never know, you might even find a bit of time for some relaxation if you delegate like a pro!