So engorged so painful HELP

I am 3 days PP and my boobs are absolutely engorged I can’t even lift them they are rock hard and so painful. I had to pump in the hospital because my baby wouldn’t latch properly because he was absolutely to sleepy. So they made me pump and I continued to pump. I think my body thought it needed to make more or something. I made so much milk. Just within these three days I basically have a stash going 😩🤦🏽‍♀️. I have stopped pumping now and I hand express my boobs to get as much milk out. He has milk stored so I’m not worried about that. I’ve tried massaging, cold compress, hot compress. I want to relieve the pain and decrease my supply some so I make enough just for him and not so much extra m. Can I use cabbage and then teach baby to latch on to me? Or will I just loose my supply all together and not get it back. I really really wanna ebf but I don’t want an oversupply and I think that’s what I taught my body.