Night time anxiety

I’m seeing all these moms post about their babies sleeping through already and I’m like how in the world are you doing that??? With my first I had night time anxiety because I knew he slept crap every night and expected it. He only slept through at 3/4 years. He will be 5 next month. My 2 month old son also doesn’t sleep through but all these October moms babies are sleeping through. Even my cousin who gave birth 5 days before me has her baby girl sleeping through.

She’s mixed feeding though so I’m thinking maybe it’s because he’s breastfed and breastmilk digests after 90 min so he’s hungry sooner right? How else do babies go 9 hours without eating?

I really thought my second baby would sleep better but doesn’t look like it.