Newborn feeding

My pediatrician is the worst and I’m in the process of finding a new one but I was told to feed my baby 2 oz every 2 hours but at night she doesn’t want to wake up and it messes up her schedule what should I do? Let her sleep? Wake her up? And I was also told to only give her 2 oz if she wakes up should I give her more? She’s almost a month old,m. My pediatrician yelled at me and told me not to over feed her so he made me feel bad about her feeding times. (I never over feed her)