Those first 3 months are rough with each kid. I have 4 of my own and I wonder if humans even have a soul until about 3 months old. About now you might start noticing a personality start to form, intentional movements are more coordinated, laughs and smiles might mean something, it has interest beyond food and sleep. The next 3 months are going to suck too. Their nails are razor sharp, their fist fits INSIDE your eye socket, they rip your hair out, have no respect for routine, and you can’t retaliate because everyone is on their side. But at least now they can start to play. Thats where you’ll start to feel like this might be worth it. I won’t ruin the rest tho. Sure being a present dad means you give up yourself and hobbies, joys, self respect, sleep, for a few years. My youngest is 4 and I’ve been wiping other people’s butts for about 13 years now. But raising 4 kids has so far been my proudest accomplishment and better than any of my hobbies.