Told in plain, blunt statements, the poem describes what it feels like to be caught in a low mood. The speaker says that when they are upset, they "shut down" and lose all motivation. There is no build-up and no decoration, which makes the voice sound tired and flat, as if the speaker has no energy left to dress up their feelings.
The most striking part is how the speaker treats their own pain. They admit that some people may care, yet they still insist that no one does, and they dwell on negative thoughts until they hurt themselves with them. The final stanza is the saddest. The speaker says "I totally deserve this" and asks not to be contradicted, closing with "This is just how I am." Nothing in the poem suggests a way out, so the mood is heavy and resigned. What lingers is the speaker's certainty that the pain is deserved, and that makes the poem feel honest and a little worrying.