I already upvoted the accepted answer, to which I cannot add anything. So I'll take the opportunity to challenge
YEAH! That's a thing!
I was in a private Family Practice (practicing Obstetrics as well) when I first became pregnant. Without fail, I used to tell the mother (or parents) on several visits as their due date approached how the baby would have no circadian rhythm, to sleep when the baby sleeps, and to expect to get nothing else done, including getting out of their pajamas. If you managed a shower and a load of laundry, it was a really good day.
Then I had my first baby. Everything I so carefully warned my future moms about flew right out the window. I couldn't understand how something so little that slept so much could rob me of so much time. Once when the baby went on a crying jag, I just broke down in tears.
So, "yeah, that's a thing!" isn't helpful when you're the one struggling, sleep deprived and perplexed by the difference between your former highly productive and competent self and your now minimally productive, always tired, still in your pajama self with a newborn whose only interaction with you is to sleep, fuss, look around glassy-eyed, and eat, pee & poop.
We're here to help and support people in all stages of parenting. Parenting is hard work, and often baffling to the parents if not to you.
So, to this:
Is this just something that we (or rather, I) just need to deal with...?
I'd answer yes. Vote to close, though, if you find a good dupe.
When I was a resident, one of my OB-patients-turned mom lived in the same apartment complex as I did. She often called about and I examined her baby with colic. One evening she called me in tears and said she was absolutely at her wit's end. Maybe the most unprofessional thing I ever did, I told her to bring me the baby and go out and walk, or sleep, or take some photographs (she was a photographer) and come back in three hours. She did. I did everything I knew and had advised to soothe the baby without success. She came back looking grateful and reanimated, and I read everything I could get my hands on (no computers back then) about colic. There's nothing like real life experience to teach you how little you know.