I cant put my baby down...

My son is 2.5 weeks old and he almost NEVER let's me put him down. During the day I can sometimes get him to sleep in his bouncer. But most of the time he just wants me to hold him. He wont even let his dad hold him without crying. We bought a swing yesterday hoping that would help but he wont go in that. At night we have to cosleep because it's the only way any of us get any sleep. Now, I understand this is very normal for newborns, I know they cant differentiate between wants and needs yet, and I know theres no such thing as holding them too much at this age. The problem is that I also have a 4 year old and 2 year old. My boyfriend has been on paternity leave and my older kids had preschool so holding my baby a majority of the time wasnt too big of a deal (besides my apartment being a mess because I love my boyfriend but god forbid he clean something up without me asking). But my boyfriend goes back to work tomorrow and now my kids preschool is closed due to COVID-19. So basically I'm going to be home with a 4 year old who is very much a mamas boy and has always been like my little shadow, a 2 year old who doesnt like to play independently, and a newborn who never wants to be put down. Anyone have any advice or tips?? I'm stressing just thinking about this 😟