Baby boy is 14 weeks old...

I’m struggling with feedings. This little boy is a hungry hippo. We just jumped to 5 ounces from 4 ounces because it just wasn’t doing it. He takes the 5 ounces well and seems satisfied. I figured with the change he’d now go longer in between feedings but no! He’s still wanting to eat every 1.5- 2.5 hours. It’s literally wearing me out!! He doesn’t spit up or puke. The only explanation is a growth spurt🤷🏼‍♀️ he has been eating like this for quite some time now. I want to get him on some sort of schedule but it’s not working as has he wants to be fed on demand. HELP!