How to dry up my supply?

I'm over breastfeeding, I'm exhausted, my house is a disaster, my other children are neglected because when I am not nursing him he's crying wanting to be held. I can't just let him cry because I feel like he's still hungry. He cluster feeds almost every night for hours at a time, I can't take a nap because I have other children in the home. It's only been a month but it's been the longest month of my life. I need advice on how to dry up my supply please. Thank you!