When my editor suggested I was burning out, I balked: Like other type-A overachievers, I didn’t hit walls, I worked around them. Burning out ran counter to everything that I had thus far understood about my ability to work, and my identity as a journalist. Yet even as I refused to call it burnout, there was evidence that something inside me was, well, broken: My to-do list, specifically the bottom half of it, just kept recycling itself from one week to the next, a neat little stack of shame.