Need Advice

My dad takes away my electronics for a week if I don't finish practicing 2 hours of piano per day. I think its unfair, since I normally finish practice, but if I miss one day then it all gets taken away. I feel like he's starting to become crazy with everything going on. idk. he also has anger issues, and my mom and sister have been giving him tons of chances, but I just don't think its working out. I want to move out, but I am still underaged and therefore cannot afford to do so. he's been yelling at the family a lot and everyones just getting rlly tired. I don't know what to do at this point. someone please give me some advice. I really don't know what to do anymore.