Going back to work

Steph.
I go back to work Thursday (9w pp). I have been breastfeeding/ pumping at night and pumping / bottle feeding milk between 8 and 5 (when I'll be at work). I keep 12oz in the fridge and have about 71oz in the freezer. Any suggestions on what I should change?  I have been able to pump today for tomorrow supply and then some. 
My LO seems to eat between 5&6am so I can I can nurse before leaving for work. And then he eats between 8&9am, 11-12pm and 2-3pm (all depending sometimes sooner sometimes later). He eats 4oz per feeding. When k nurse I only nurse one breast. 
I have been pumping around when I know I'll probably be able to at work.