Sleeping in the crib

We just transferred our little guy to the crib, figured let’s do this while I’m still home for the next two weeks before heading back to work. He’s a loud sleeper and we wanted to see if being in his own space would help him. While in our room he was sleeping 5-6 hours before waking to eat. The last two nights in his crib he’s waking at 4 hours 😐 I get so frustrated/jealous seeing people posting about their baby sleeping through the night, I just can’t wait to get to that point. He’s almost 11 weeks old, and eats a ton as he’s a big boy. What have you done to get your baby to sleep through the night and ease the crib transition.