it's not really hoarding so much as it is not having the will to take care of yourself and your surroundings. hoarding is collecting things obsessively and deliberately: filth accumulation is the opposite of that. it's cold, bleak apathy towards one's surroundings as a result of not caring for oneself. depression isn't being in a bad mood; it's a complete theft of your will. the more depressed you are, the less will you have until you get to a point where you're living in filth like op's image and you feel nothing from it other than a vague sense of guilt.
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