My newborn has been breastfeeding back to back and never seems to be full. She’s almost three weeks and i barley get any rest due to her continuous need for nursing. She only sleeps in 30-40 mins intervals at a time. My mom watches her for a couple of hours where she formula feeds her.

Is this normal? At her two week checkup she had gained a healthy amount if weight. But i don’t know how to get anything done when shes like this.

Any tips?