6. "Success" is different now

Before parenthood, success is somewhat easy to measure: Study hard—get a good grade. Train hard—run a 5K. Work hard—finish that big project or get a promotion.Fourth-trimester success is totally different—and often really hard to see. Every time you take a step forward, it seems like you have another setback. You spend all day keeping this helpless human fed, dry, rested and moderately content, only to receive an evening scream-poop-puke all over you as a note of appreciation.In the hard moments, it can feel like the most unimportant, thankless work on this planet.But know this. To the baby who has consumed...