Part of the ability to keep writing over the years comes down to living with the expectation of disappointment. It's the exact opposite of capitalism. In capitalism you want your business to succeed, and to the degree it does your energy increases, and you go out and buy an even bigger business. In writing it's almost the exact opposite. You just want to keep the store going. You're not going to do as well this year as last year probably, but nonetheless let's keep the store going. What ruins most writers of talent is that they don't get enough experience, so their novels tend to develop a certain paranoid perfection.