School is hell help??

i was new at school last october but i made a mistake i ended up going to a school i didn't want to go to.i wanted to go to allerton high school in leeds.im so miserable.when i first went to the school it wasn't that bad i was nervous but that is normal on your First few days or even weeks.but its weird im still nervous.before i go to bed i panic about tomorrow at school some time even cry myself to sleep which isn't good.the school is too strict for my liking i cant concentrate.a group of boys always pick on me once maybe every two days or something like that which hurts my feelings.once they were bullying me in cl but the bad thing was it was five against 1 my friends didn't even stick up for me and just said don't mind them.which isn't what friends are supposed to do.in cl i try to tell my friends something and they don't listen to me they listen to each other.they some times lie to me about shopping trips and sleepovers and never invite me.i know i only known them for short while but still no excuse.i hate the school im going to i told my parents about how miserable i was and she suggested changing schools but i said no because i just started school in leeds just for a year but secretly i want to change schools but don't no what to Say.my sister has settled in high school before me and i still haven't settled in.i want to change school what shall i do.by the way i going to be in year 10 in september please help me.