The speaker describes lip picking as something that happens almost without them. Their eyes aren't really seeing and their brain isn't really thinking, yet their fingers keep working, tearing away bits of skin until the lips bleed. The poem opens on this sense of disconnection, as if the body has gone on without the mind.
The middle lines show a strange mix of numbness and sensation. The speaker says they are ignoring their feelings and hiding their issues, but they still feel their heartbeat in the raw patch of the top lip and the sting of each touch. The pain seems to pull them back into their body while their brain "floats in space."
The ending is quiet and unsure. "That's why I'm a lip picker" sounds like an explanation, and "Maybe itll help" suggests a small, hopeful guess that the habit might ease something. The mood is detached, tense, and a little sad, but also honest.