Going back to work need pumping advice.

I go back to work 6 weeks pp, I’ve been breastfeeding for the 3 weeks i’ve been home and plan on breastfeeding the next 3 until i go back. I work at the daycare he will be going to so i’ve highly considered feeding while at work but i’ve realized it would cause more problems than solutions. When and how do i start pumping for his bottles for daycare. I feed him every two hours (or less because he soothe feeds a lot) so i have no idea when i should pump or how to store it (i know you store it in the freezer long term) if i pump the milk the day before daycare does it go into a freezer or fridge? what about the milk i pump at work? I’m so lost.