Family issues, need help :(?

ok, my parents are really being mean. since i moved which is last year, they started to become a lot worse. i really, really, hate them. not just today. everyday. they try to do "whats best for me". whats best for me shouldnt want me to runaway or commit sucide, and make me feel stupid. here's things i cant do; go outside, hangout wih friends, sleepovers, ( they have no clue what that is -__- ) friends in general, (they think my friends are "in the hood" they make staright A's) no makeup even though all i want to put on is eyeliner, mascarra, and some eyeshadow. they think its too much for a 14 year old. buy clothes that i actually really need. ( a bathing suit! i go to my next door neighbor's house to go swimming every single week after i get tutored. i have to go swimming in my normal clothes because my parents think that bathing suits are too show-y ) they even make me play piano! iv'e been playing piano for more than 6 years. i wanted to quit the first 2 years. when i want to quit they yell at me saying how much they invested for having me play piano. they finally say ok but give me the cold shoulder for weeks and yet they still take me to piano lessons. they make me play piano for about 1 hour and 30 min a day. i have tons of HW and projects due soon but i never find the time to do them because of piano. they always say i wait last minute to do them but i start them first time i actually have time to do it. i even got a 0 as a grade the other day because my mom refuses to give me a notebook for my project. she thinks that i can just use normal paper. i really cant and i told her and said " thanks a lot mom " in a sarcastic voice after i got the zero. she said its not her fault! as she gives me a lecture. my dad agrees and says that i have low grades anyways and that i dont study so ill get a bad grade anyways. i have all As and one B on my progress report. they told me that they were dissapointed that theyre daughter isnt smart like all the other asians in the world. they call me retarted and stupid just becuase i needed help on my math HW. and when i try to talk mature by saying " yes mam" and "i understand" but they always take it the wrong way and say shut up and stop fresh talking! i told them and said stop trying to act old and act your age. the other day my mom bought mud fish at the asian market and i was with her. i called her weird in a joking way. but she slapped my face and said " how come i had to raise such a disgraceful spoiled brat? " every one was looking at me when tears rolled down my eyes. i felt so embaressed. they even told me to give up on my dreams on going to harvard becuase they dont take in stupid disrespectful litlle 14 year olds like me. my teachers told me to aim high but now i feel stupid. nobody knows about this in my school except for my closest friends. but the question i really wanted to know is how come they say they love me if they really dont?