Or let’s say you have an anger problem. You get pissed off at the stupidest, most inane stuff, and you have no idea why. And the fact that you get pissed off so easily starts to piss you off even more. And then, in your petty rage, you realize that being angry all the time makes you a shallow and mean person, and you hate this; you hate it so much that you get angry at yourself. Now look at you: you’re angry at yourself getting angry about being angry. Fuck you, wall. Here, have a fist.
Or you’re so worried about doing the right thing all the time that you become worried about how much you’re worrying. Or you feel so guilty for every mistake you make that you begin to feel guilty about how guilty you’re feeling. Or you get sad and alone so often that it makes you feel even more sad and alone just thinking about it.
Welcome to the Feedback Loop from Hell.