Newborn Help

My LO is a month old and will sleep 3-4 hours, if I'm holding him but if I lay him down to sleep he either cries immediately or only sleeps 30mins to an hour. I've tried his sheets smelling like me, propping him up, putting him in a swing and bouncer. Any tips help, I don't want to sleep with him in my arms but I'm getting so tired! Thank you in advance!