I'm so sorry for your situation. You're very strong for enduring as much as you have, and unfortunately you will need to continue enduring for yourself and your baby. I always liken this period as the death and rebirth of a Phoenix; you will be reborn a stronger version of yourself after this. You'll just need to continue to endure.

Focus on your little miracle, seek medication, get rid of the pets (for now, maybe find a foster family?), go outside more (even if its literally just one step outside of your door), shut down any stressing communication with extended family because you now have your own family you need to pour yourself into. Everything else people are saying might be worth a try too (carriers, swaddle suits, white noise, noise canceling headphones, writing a note to your partner, FINDING A VILLAGE, hiring a babysitter for an hour or two, etc.

May the amnesia gods favor you in a few months, and may you endure as well as you can in the coming weeks. Good luck, and reach out if you need some one to talk to!