Could I be being abused?

This is kind of embaressing...but I think I might be being abused. My dad will go into these random rages..he never hurts us, but he yells at us and calls us names and is really rude. His house is also really messy. Like...filthy. Dishes from months ago in the sink, trash everywhere, etc. which is why I try to be at my moms or friends houses all the time. He is just...creepy. He makes me crazy because hes sick and rude. He'll call me ugly or make me do things hes to lazy to do. Anyway.. You dont know everything.. But thats the general stuff.. Am I abused? and if I am what can I do? I feel so powerless to stop him. Please help..?