Quit pumping cold turkey or wean??

I'm 6 days pp and I don't want to breast feed anymore. I'm currently only pumping and she's mostly on formula now. Would it be better (for me) to quit pumping cold turkey or to slowly start pumping less and less? Will it hurt less to wean myself or should I just quit and deal with the pain for a few days? Or will that cause mastitis or anything? I'm only pumping 3× a day now and it hurts already.