Low Breastmilk supply

Hi Mamas, I have a 7 day old and breastfeeding has been a real challenge for me. I am facing a lot of nipple trauma and am scared to breastfeed but I’ve been trying to do as many feeds as possible and supplement some feeds with formula (Enfamil Gentlease) that my pediatrician suggested. I’m feeling very guilty for not being able to do what’s best for my little one. I have tried pumping but I’m getting very sore combining pumping and breastfeeding. Can you mamas help me with choosing a good organic formula for my little one. I have been getting a lot of ads about Bobbi and Kendamil. Pumping isn’t yielding a lot of milk either to compensate either. Please need your input mamas.