decreasing milk supply?

Hey ladies, I'm having trouble with producing too much breastmilk for my 9 week old. I pump and store but I'm running out of room in my freezer and deep freezer😩 he's only 9 weeks, I can't do this anymore. I can easily pump 45 ounces a day. It's becoming too much, I don't sleep, not because of my baby but cuz my boobs wake me up 😪😭 it was great in the beginning cuz I was focused on having a great stash but I need some suggestion into naturally decreasing my milk with little to NO pain please. Engorgement is painful enough. Thanks I'm advance!