At 61, I did my first unassisted pull-up — something I considered impossible just nine months prior. It was the goal I'd challenged myself to achieve in my 60s, following a pattern I'd established in the two previous decades. In my 40s, I wanted to finish a half-marathon, and in my 50s, I set out to hold a handstand. I accomplished both. Reaching a physical milestone as I age spills into every area of my life, particularly when there are curveballs. Whether I'm helping one of my children