It's hard to maintain a sense of self worth when there is nothing to confirm it. When the bank card is rejected after all the groceries are bagged; when it's been a week and you still haven't had the physical strength to change the light bulb in the ceiling lamp.
When you just keep closing one door after another and there is nothing to keep you from doing so.
I can't need anything from you: somebody else needs far too much from you already.