Overcoming Fear of Creative Failure, Part 1: Managing Expectations

Here's a confession: the closer I inch to release dates for professional writing projects, the more I suffer from senseless eleventh-hour panic spirals.
Along with the more garden-variety worries (that I'll disappoint people by not living up to my last project or by not producing something "good enough" or by writing something that not everyone likes -- imagine!), one of my more persistent concerns is the irrational fear that I'll never have another good idea.
Now, this fear is silly for a numb...