Harper was only a couple weeks old when I sat holding her in the middle of my bed, just sobbing over how much she had grown in such a short time. I wish hormones played a role every time this happened thereafter, but here I am doing it again as my baby started kindergarten today. All summer she’s been anxious about school, mostly because she was afraid of having a principal (a fear only that child would have, and rightfully so). All summer I’d been fine. I was…