3-4 mo sleep regression - how did you survive?

My 3.5 mo old is going through a sleep regression I think and I have read the taking cara babies guide for sleep regressions and nothing is working. It’s not AWFUL, he just used to sleep a lot longer 8pm-4am then again until 630/7am. Now he’s sleeping 8pm-1am, food then wakes up either at 4am for food or at 530 for the day. Since nothing is working I was hoping maybe I just need to wait it out and it’ll pass or am I doomed lol

I miss him sleeping until 7am lol I try to get him back to sleep when he wakes up but he screams until he’s fed. Even after I feed him at 530 he won’t go back to sleep. He’s getting plenty of food throughout the day.

Thanks!