Can't stop crying/breastfeeding frustration

I'm 5 days PP and I just want to cry all the time. In the hospital the lactation consultant told me everything looked perfect. Baby was latching properly, I was producing colostrum, baby was getting nutrition she needed. Then we went to our first pediatric appt and we found out baby was nearly jaundice enough to need to go back to the hospital and lost nearly a pound since birth and that I'm barely producing any colostrum/milk. We were immediately given formula right there in the pediatrician's office and she gulped it down and I could hear it going into her hollow stomach. It was honestly the worst sound in the world and I'm crying just thinking about it again. She will not latch to my nipple so I've been pumping and I'm lucky to get an ounce total out of both breasts. The lactation consultant at the pediatrician office is really pushing me hard to get her to latch and pump every 2 hours to get my milk to come in. It's driving me insane because when I pump I'm barely getting results and baby doesn't latch, she just bites. I am feeling like I want to just go to formula exclusively because I am miserable and crying all the time and getting frustrated and angrier as the days go on. I just want my baby fed, healthy and happy...