Hello Automaticgal,
You poor kid, you do not deserve that kind of treatment from the people who should be protecting you. It is abuse, however you look at it, it is abuse. As hard as it may seem, for your own sake, and safety, you must get out of what is surely a dangerous situation. Your parents obviously do not understand what they are doing to you. It is no good them saying that it is nothing to do with you, you are in the middle, of course you are going to be upset. nohorn is right, you must go to the nearest child welfare office and tell them what is happening. It will be hard sweetheart,, but you must do it. The violence is only a word or a split second away. do it to day. Phone childline, they will help you. I wish you well AutomaticGal