Exactly this. It especially applies to people who cope with self-worth problems. The "Just try harder" becomes "I can do it, why can't you", which becomes "You can't do it because of X", which over time morphs into "You can't do it because you're worthless".
Of course, because those thought-patterns increases stress and self-burden, this can lead to never-ending cycles where the person is literally rendered incapable of breaking out of the cycle.
Of course, because those thought-patterns increases stress and self-burden, this can lead to never-ending cycles where the person is literally rendered incapable of breaking out of the cycle.