Zero sleep...at a loss

My husband and I are on day 4 of zero to maybe an hour of sleep over a 24 hours period. Our 19 month old naps a solid chunk a day so my husband naps when he does but I’m usually breastfeeding or holding my newborn daughter bc...

She’s cluster feeding and won’t sleep without being held! I’ve tried all my tricks and then some but she just won’t sleep. I sometimes get a quick nap in when my husbands holding her but he also has to take care of our son so it’s very hard.

I’m currently propped up in my nursery chair with a blanket tied around my torso while nursing my daughter. Constantly nodding off and neck whiplash trying to stay awake. If my husband tries to take her while I sleep, she cries for a feed within 30 minutes...

(All of our parents work and our friends work/have kids of their own so our “village” can’t help)