I’m new to breastfeeding and need help!!

Hi my baby girl was born on 5/23 she latched good as soon as she came out but two days later we had to be readmitted to the hospital for jaundice and I was told to pump and bottle feed her and to also use formula.Were back home now and I e been strictly pumping and bottle feeding but when I pump every 2-3 hours I’m only getting 2-3 ounces total. Am I suppose to be getting more by now and at some point I wanna start her back breastfeeding but when I try it’s like she gets impatient and cry. Any any advice would be helpful I’m trying to stay strong and not give up b4 I go back to work in 4-5 weeks. She’ll be 2 weeks this Friday btw.