My 6 week old won’t sleep

My son 6 weeks old and all week he refuses to go to sleep, cry’s for hours and won’t stop. He was on a schedule that he set himself when he was 3 weeks old. He burps 3-4 times after each feed, he won’t sleep in his bassinet or crib now. I’ve tried giving him a bath, it doesn’t help, I tried letting him “cry it out” but that didn’t help either. The only way he’ll sleep is if he’s laying on me. I don’t like cosleeping but he likes sleeping on his side. What can I do to help him sleep?