Tips?! Newborn no sleep!

So my baby is 3 weeks, i haven’t had a auper hard time putting her to sleep at all, but for the past few days its been a nightmare putting her to sleep, she just cries and screams, shes changed , fed, i even hold her and rock her nothing works, during the day shes fine and quiet as long as shes not hungry, shel sleep or just chill quietly in her swing or crib, usually at night il feed her and she has no problem falling asleep in my arms(usually super late but at least she wasnt screaming) i juss dk wat to do or wats been causing this? Its like she flips at night n doesn’t want anything, ugh its soo frustrating🤦🏻‍♀️