Hiya. Have you got other hens? If so, just put Macy out with them. Its is not depression, it is her hormones that need to come down and they will. Google how to break broodiness.
If these are your only 2 hens, you could consider getting some day old chicks from somewhere else, or setting her on some fresh fertile eggs, but...it is late in the year and she really needs to recover her health before she is subjected to another 21 days of very little food, water and exercise.
Another idea would be to try and slip one of Daisy's youngest chicks under her at night, and hope Daisy doesn't notice/the chick imprints on Macy. This may fail, and Daisy may claim the chick back and not be very nice to Macy in the process.
You could also wait and see if Daisy relaxes and lets Macy help her raise them over the next few weeks.
ETA a million typos!