Please read, I'm desperate for advice/help!

Our little guy was born Dec. 5th ❤️❤️

But since we've been home he will not sleep for us at night. My husband and I are getting 2.5-3 hours of sleep a night.. we are exhausted!.. He naps through the day no problem in his swing, his boppy pillow, while we hold him. But come night time he will not sleep unless we are holding him. He starts to cluster feed really bad at night as well. He is breast feeding and there are times we supplement with formula but not to much. He has us up until 5AM every night and I am willing to try anything at this point.