A friend of mine has abusive parents. Since he was just a little kid they've mistreated him, smacked him around when they think he's done something wrong, even if it's the mildest thing in the world, completely crushed his self-esteem and made him lose much of his hopes for a better future. He wants nothing more than to do well in school so that when he's 18 he can move out and get a proper job, but he can't do work at home because his parents won't let him, favoring forcing him to perform chores, and he's so broken from years of abuse that he can't perform well in class. His childhood and his future are both forever destroyed because of how shit he has it.
But yeah, I totally see why I should give you my sympathy. Clearly your life is hell.