Replying to Anyone else here have a nasty-ass hoe of a sister?

My sister thinks she is all hot and shit even though she is not. She is 19 and thinks she is a grown adult even though she still lives with my parents and doesn't even have a job (or pays for her own gas.) I work for 8 hours a day and all she does is sit on her lazy ass eating all day. When I get home from work she wants me to unload the dish washer for her (which is a 10min job), and I told her no and she starts to attack me personaly, and says Im on the compter for too l;ong when she just sits in her room. Shes a bitch.