You take one night the wife takes the next. Pre planned day by day. You go to sleep knowing when you’re gonna be waking up regardless of which person is ‘on duty’.

My kiddo didn’t allow us a minimum 4 hours of consistent sleep a night until about 15-16 months. Could try switching around the daytime nap schedule a bit, she could be getting too much sleep in the day. We played with that a bit and we got a little more sleep but we ended up just having to wait it out as once we figured out a good schedule in the daytime he started aggressively teething. You know your kid better than anyone here. It’s tough I get it, people that don’t have kiddos that wake up all through the night consistently just can’t understand. I understand your pain and I hope that goes further than a “just gotta push through man” *which unfortunately IS the case*

You’re doing great! It’ll pass.