She's another part of me

She's always been here,
but I've always tried to suffocate and hide her.
She's another part of me,
one I don't know, one so different.
I tried to hide her and muffle her voice inside me
in fear someone might notice my growing insanity,
but at night she wins,
she takes over me, and I become her.
She creates chaos then disappears and leaves me to hide the cuts and face the guilt.
Prozac tends to help but she refuses to leave and always comes back laughing at the thought that I could resist her.