Overwhelmed plz help


Okay so I just had my 2nd child 2 weeks ago and I love him so much. But the problem is i feel like a new mom all over again cause my 1st child just turned 11 so I'm a little out of practice. My baby will not let me put him down after I get him to sleep. I dont think I've slept myself in like 2 days. How can I get my newborn to stop screaming every time I put him down?

New baby Ryker and big brother Connor.