MY PARENTS ARE CRAZY?

so lately (more like my whole life) ive been having a lot of trouble with my parents. recently, ive been applying for schools because we are moving and when i said my opinion of which school i wanted to go to the least which was one of the school they really wanted me to go to and i got accepted i got into a big argument. i was slapped like crazy for the next days and is still goin on now. whenever i bring up somethin negative my mom comes and slaps me hard. also, my sister sometimes gets into big trouble sometimes but she never gets slapped. she only gets grounded for maybe 2 days at most and I GET GROUNDED FOR WEEKS for doing the same thing. i also made a friend lately around the same time i got into the big trouble and my friend and i were planning to go to jamba juice together before he moved to irvine (we both live in newport so hes only moving like 20 miles away) because in irvine we're too far away. so my mom found out of my new friend and now she wont let me hang out with him anymore. even before he brought me to a boy scout camping trip when i was 7 years old i came back and my mom asked me if i had fun. i said that i didnt because my dad didnt let me do anything alone with my friends. WHY ARE MY PARENTS LKE THAT? i get slapped about 5 times in one week because we are so disagreeable. sometimes my parents get so mad at me that i just want to kill myself or run away but that never happens because i dont have a gun. im now 11 and my parents are still overprotective. even when i ride a scooter instead of a skateboard she makes me wear a HELMET!!!! scooters are so easy and ive never fallen on one. even on a bike i still have to wear a helmet. i understand the skateboard with a helmet thing because sometimes unpredictable things happen but a SCOOTER??? that just doesnt make sense. so back to my new friend my mom says that i cant be with him and i can only hang out with specific people and THEIR ALL NOT MY TYPE! i like sports and their all nerds. so seriousley WHAT DO YOU THINK OF MY PARENTS??? HELP ME!!!!