Pardon my vent

apparently in my house screaming in a shrill voice, sobbing uncontrollably, slamming doors, and stomping around the house is a good way to get what you want...... I mean when my sister get angry because I'm using a history book to do my homework and throws a tantrum similar to a three year old who has had her ice cream taken away, I get in trouble, I mean even though she's screaming like a banshee I'm both unjust and unreasonable, how dare I do my homework with a book she told me she didn't need.... who the hell do I think I am? And I totally understand how I was rude to my mother this morning, I said I was busy doing something so just tell me simply and quickly what she wanted to do and I was told to got to hell...... I was extremely rude right? There is no winning when Sarah gets B's its a good job and she gets rewarded but my A- are way to low, how dare I not work harder to have straight A+. O' and didn't you know that I should get  perm tattoo o fix my scar and loose twenty pounds, because I am not allowed to be flawed, if that's how you view a scar and curves, I must appear perfect after all that isn't applying to much stress on a teen already breaking under the weight of school stress, I'm trying to maintain a GPA good enough to get a full scholarship to college because I can't afford to go, deal with a enough family flaws to warrant me to have a rebellion so bad that I don't come home for weeks at a time.