I'm going to get pissy over feeling like a live-in maid for my parents
Are your parents treating you like a maid?
There is a time when I get tired of it and decide to stand up for myself.
It can feel awful when you know people are taking advantage of you, especially family. Let them know that you need a compromise and that you can't do all of the cleaning!
Right and tell them that I won't be cleaning their dishes anymore.
Good for you, standing up for yourself is essential to be respected. Your parents will see how wrong it was to treat you like that and start to be more sensible when asking for your help.