The phenomenon is real. You're trying to make a change in your life. Maybe it's drinking less or shopping less often. Maybe it's a new diet or exercise regimen. Only to feel shame and anxiety when you slip up. Change seems impossible. Why bother? This is on my mind at the end of Lent, the season when some Christians give up something—coffee, chocolate, anything—to reflect on sacrifice. Most of people I know who gave up something report that they only lasted a day or tw