We happen to be alive during the most prosperous (yes, that's right), care-free, illness-free, pain-free period of time in human history. 100 years ago many of us would be dead by now (raises hand), while those of us still living would have been riddled with pain, rotten teeth, and many of us would be addicted to opiates. Oh yeah, we would have lost half of our kids to stuff like polio and scarlet fever. You have a roof over your head, a fully belly and a variety of entertainment that our ancestors could not have imagined.
So cheer up and listen to Annie!