Listen, cutting yourself is generally a two fold thing>1. physical pain helps to cope with your psychological pain>2. you are an attention whore>there are more cases in clinical psychiatry like bloodlust or cannibalism to name a few >these ones are Extremely rare psychological conditions
Escaping the pain and attention whoring are absolutely the most common conditions for cutting yourself these days.
This is not my knowledge but coming from someone I know. Her education and years of experience in this field of expertise is literally World class.
I in fact have her right here beside me right now.