Bounded Cutter

Cutting has consumed most of my life, everything is decided by the knife.
I don't have any control of it, it takes away my sanity bit by bit.
I can't get away, I think about it every day.
In my thoughts and in my sleep, this is a secret I have to keep.
If someone found out, I would be sent away; no doubt.
It's a wonderful blessing and a terrible curse, it takes away the pain but leaves something much worse.
I wish I could undo these locks which trap me, I wish I could stop cutting and be free.