I am loving the book Crazy Busy: A (Mercifully) Short Book About a (Really) Big Problem by Kevin DeYoung. I recommend it.
Chapter 6 is called "A Cruel Kindergarchy—You Need to Stop Freaking Out about Your Kids." :)
The last chapter, called "Embracing the Burdens of Busyness—You Suffer More Because You Don’t Expect to Suffer at All" has probably been the most convicting for me, and I think is the most unique content in the book.