Seth Godin:
In more and more fields, the originator of the novel idea reaps an outsize share of the benefits. One reason is that it’s easier to gain attention quickly. Another is that once you gain attention and reputation, it’s easier to lock in permission and turn it into a foundation for your next project. And most of all, when attention is precious, earning that attention with innovation is priceless.
I think if you do something and it turns out pretty good, then you should go do something else wonderful, not dwell on it for too long. Just figure out what’s next.