Not sure about your company size, but I think that if it's larger than 50 employees then US law states they have to provide you with a private room that's not a bathroom. You should check into that if it bothers you a lot, a private room is much more comfortable.
When starting out, looking at pictures of my baby helped me get into the pumping mode. Also make sure your pump is in good working order to ensure maximum output. I know you just started working, so hopefully it'll get easier as you get more used to pumping at work. For me some days I can pump a lot and some days not so much. I also get more during my first pumping session of the day than subsequent ones.
But in all, I totally agree with your sentiment. I don't like pumping so much, but it makes me feel connected to my baby while I'm away from him all day at work.