my son cries when i put him down even if he can still see me😔i hate hearing him cry but i can’t hold…

my son cries when i put him down even if he can still see me😔i hate hearing him cry but i can’t hold him 24/7. how can i get him to chill? i know he’s attached cause it’s just me him n my cat here. my folks visit on weekends. anyway idk what to do