15 week old can’t stay asleep

my son hasn’t been able to stay asleep longer than an hour for the past week.

he used to sleep through the night and only wake once to eat at 4AM

but now he wakes up 5+ times in a 9 hour window at night.

Idk what tf to do anymore I tried everything people recommended, I was told to pump and feed him a bottle before bed and try to wean him off nighttime feeding at least from my breast.

he kicks through his swaddles, he hates being put down on his back I have to put him on his belly or side for him to even give me an hour nap.

he’s sleepy and cranky but he can’t stay asleep I don’t know why.