so far so good!
you're going to do great.
I've been working ft for a month, but worked one full day/week for a while.
this is an awesome website: http://www.workandpump.com/
You'll notice you'll start doing very well with it when you develop a routine, pumping at the same time every day.
my dd is 4 months, and i pump 3 times at work and once before i leave home after she eats.
before i went back, i did a "pretend" feeding at night to build a stash, but have since dropped that one.
i like to drink a cup of nursing tea while i pump..
depending on where you work, you may find another mama or two to talk pumping shop with, too..
and don't forget the most wonderful of things-- the rubber band trick