Baby can’t sleep well-3 weeks old

Hungry, wet diaper, colic, too cold/warm? These are the things that I will 'troubleshoot' when baby cry. If all is good but baby is still crying, then I will just cuddle my baby and hope she will calm down.

Can try baby massage, using essential oils. Swaddling (can also consider swaddle up, helps alot for my baby). And play white noise in background

Also always make a checklist, if baby is alr fed, diaper changed, room temp is ok for baby to be comfortable to sleep :)

Swaddle them up! And make sure he/she isn’t colicky

Colic?