“I can't leave the house looking like this”

Checking focuses your attention on details you weren't noticing before—a texture, an angle, a thing that now seems wrong. The check was supposed to prove you're fine. Instead it proves there's something to scrutinize. So the check doesn't calm the doubt; it elaborates it. The next check tries to resolve the new doubt. This is why the mirror is what keeps you from leaving, not what permits it.

The thought tells you that the mirror is a gate that only opens when you pass inspection. But the mirror doesn't work that way. Every reflection will have something to inspect—a hair, a crease, the angle of the light. Other people don't operate on mirror-perfect logic. They show up to the world as they are, mid-sentence, mid-motion, visible and imperfect, and nobody stops them at the door. The embarrassment you're protecting against doesn't come from looking flawed. It comes from the idea that you should have known about the flaw beforehand and prevented it.

You might. And then you'll be in the world, living your life, and it won't be the crisis the thought predicts. More often: you'll notice something adjustable—a tag, a smudge—while you're already out, and you'll handle it in the moment without the trial. The things worth fixing in the two minutes before you leave are things you already notice while getting dressed. The checking loop isn't catching problems; it's manufacturing doubt about things that were already fine.