T.S.
Even if you DID need a stockpile of milk (you don't) if it's driving your entire household crazy, STOP!
That being said, the best, easiest, and healthiest way to pump for baby is to pump every time you're away from her for a feeding and give her THAT milk the next day when you're away from her. That way the milk is always made for her current developmental stage. Also, if you do that, you can put the milk in the fridge rather than freezer, and don't have to worry about thawing it out.
When I went back to work, DS was 8 weeks old I had enough milk on hand for maybe two days. I pumped at work each day and always gave him that the next day.
Last thing, if you're willing to supplement with formula when your breasts are empty, formula is also an easy supplement if you happen to run low on pumped milk, so stop stressing about it and enjoy your time with baby. You'll get plenty of milk pumping at work (especially if you time your pumping to correspond to a regular feeding time... or two).
HTH
T.