Self Mutilation

My only comfort is the night gone black, Why it feels so good to feel so sad
I'm only happy when it rains,I'm only happy when it's complicated. Pour your misery down on me,pour your misery down

What is self mutilation?
When one purposefully inflicts harm upon themselves for a variety of reasons.
Often in the form of cutting, also manifests itself in the form of burning,bone breaking, bruising,wrist/headbanging, hairpulling,biting,picking/scratching at wounds, injestion damage.