Breastfeeding/pumping routine

I’m a FTM and this is all so new and I’m curious what you ladies are doing because I think I’m doing it all wrong. I would prefer my son just eats breastmilk either by nursing or bottle but I’m open to supplementing. I just want a happy and healthy baby.

How often are you nursing?

How often are you pumping and for how long?

How much milk are you getting from each breast when you do pump?

How do you trust your baby is getting enough?

Supplementing: how much formula and when and what brand?