Breastfeeding isuues

Me and my little man had finally found our groove at 6-7 weeks but then I suddenly had to have my gall bladder removed (apparently being pregnant increases your risk, didn’t know that.) They brought me a pump in the hospital but I was unable to pump consistently and now I haven’t been able to breastfeed while healing the way I like. My supply has crashed and I’ve had to pump non stop to keep up and I just can’t. Is there anything I can do to bring my supply up?