I love to hear people vent about work situations. When I am at school I can act like everything is wonderful, but when I get home I vent. Don't feel guilty for your feelings we have all had the same feelings with coworkers. That is one of the wond...
Try carrying a small notebbook in your pocket. When you are asked to do something, just do it happily. But write yourself a reminder of what you need to finish up. Those little details that you forget could be critical to remember. Good Luck!
I waited tables. It worked out very nicely, when I had a test and needed to study I could switch shifts with another waitress. I also kept my books in the break room and if it was slow, I studied.