Switching to combo feeding. How much & how often?

Em

I’ve grown to absolutely hate breastfeeding so we’re switching to combo feeding today.

Formula during the day, breast before bed and for his night feeding. I have so many questions. I haven’t mustered up the courage to ask my pediatrician yet because our ped is my dad and I’m afraid he’ll judge me for quitting...

Questions:

My LO is 2 months old and 11 lbs. How many ounces do you give per feeding? How often does your baby eat? Do you feed on demand? What is the max number of ounces he should get in a day?