Wanting to breastfeed 24/7

So right now, I mainly pump and breastfeed every now and then. My baby girl is 9 days old and she seems like she prefers my breast over the bottle but when I breastfeed her I feel like she’s never eating enough...at least with a bottle I can see how much she’s consuming per feed. Also my boyfriend wants to help as much as possible so that’s why we’re bottle feeding too and so she can get used to it when we put her in daycare. I really want to just breastfeed at this point but I’m so confused. I’m a FTM here so a little advice would be great.