One video changed everything. I thought I was just buying a little boy a birthday cake—until my sister sent me a link that proved the whole moment had been staged.

My name is Alice Walker, and for the last three years I have measured my life in overdue notices, lunchbox notes, and the exact number of miles my car could still survive before the check-engine light stopped being a suggestion and became a threat.

At forty-eight, I had become a woman who could stretch a casserole, a tank of gas, …