When my first baby was about 7 weeks old, I read an article saying that the first six weeks are the most important ones of your baby’s life. My hormone-addled, sleep-deprived brain gained the impression that these early weeks provide a unique window of opportunity, laying the basis for the child’s intellectual and emotional development. My baby and I had spent the first six weeks breastfeeding and sleeping and crying (yes, both of us!), so naturally I was devastated to discover that I’d already failed