I'm sorry your baby is in the NICU! I hope she comes home soon.
We had great NICU nurses, so I can't relate there - I hope you get your share of awesome ones . . . but just make sure you take care of yourself too, in between all that pumping and visiting. One thing I recommend - and it's a small thing, but small things can help you feel better when you're dealing with big, awful things - is to keep lotion on your hands. Between all the handwashing at the NICU and washing pump parts, they can crack and bleed. And you want to stay well so that you can mommy your baby the best you can!
Also, even if they don't let you take her out from under the bili lights, you should be able to stick your hands in the portholes and hold her head and feet, sort of making your hands into a cozy nest for her. She'll know you're there!
Hope your baby comes home soon.