Conversely, I've lost a bunch of weight by not tracking calories (or anything for that matter, beyond glancing at nutritional labels). I focus on eating protein

Conversely, I've lost a bunch of weight by not tracking calories (or anything for that matter, beyond glancing at nutritional labels). I focus on eating protein, fiber and fat so I fill up quickly. Our approach might seem to be at odds but the mechanism of action is the same: we eat less. Figure out whatever approach gets you to do that and you win.