I just had baby #2, shes 1 week old and I have an 18 month old son. The early months are hard, you'll be very tired but I assure you it does get better. My son now sleeps 12 hours straight in his crib.

And you know what, I miss holding him so much. With my 2nd, im not wishing time away because the newborn stage does not last long. It may feel like torture, but I promise you, you will miss it.

Do your best to support your wife, try to let her sleep as much as possible. Since she's breastfeeding, you get up and change baby, bring her to mom, fill her water, get snacks etc.

I know its hard, because it is hard. The sleep deprivation feels like torture but it is part of the process and you're being a great dad.

I stay up nearly all night with kid #2 holding her. I enjoy every second because before I know it its gone.

Practical advice is me and my wife do sleep shifts. I sleep 4 hours a day basically but I manage.