It won't hurt me now

I’m not going to put myself through this any more,
I’m turning my back and walking out the door.
I’m ending this now and beginning again,
You lit a fire inside me and it fills me with pain.
I respected you but that respects no longer there,
You’re trying to hurt me but I don’t really care.
You thought you could control me and change what I do,
You think you’ve destroyed me but that’s no longer true.
You can stare all you want and be a total cow,
You can call me whatever but it won’t hurt me now.