When things calm down a bit, head over to the Preemie/NICU forum here. There is a wealth of info in that forum. I know all too well how hard it is to leave the hospital when you're discharged without your baby. That's something I'll never forget.
And with the pumping... My milk didn't come in until day 5, but once it did, I found it pretty easy to keep up with my baby's milk needs in the beginning. They eat *so* little at first - like 1oz will last several feedings. Pumping requires a bit of a state of mind, but just remember that any amount you get into the bottle is useful, even a few drops of colostrum can be mixed with formula if necessary (that's what they did for the first couple days they fed my first son).
I'm really glad you got to Kangaroo Care!!!! That's something my NICU didn't allow.
So it sounds like yours is uptodate, which is GREAT. Keep that up, and before you know it, you'll have your baby girl home.