You're not going to die. Here's the white-hot truth: if you go bankrupt, you'll still be okay. If you lose the gig, the lover, the house, you'll still be okay. If you sing off-key, get beat by the competition, have your heart shattered, get fired. . . it's not going to kill you. Ask anyone who's been through it.
I'm always working. I don't really set limits. I tend to go in bursts. And in between, I'm doing my taxes, answering the phone, and all those kinds of things. I waste a lot of time. Computers take a lot of time. I love computers.