How to go to an out of city highschool?

so i currently live in a surburb near philadelphia and ive been looking forward to junior year at my current school. school starts august 30th and my parents just informed me that we're moving to harrisburg sept 1st. im soooo depressed right now and idk what to do. ive been in this school district since i was in the 6th grade so im kind of attached and i know everyone and my counselor and i are really close, and i know the teachers, etc. now we're moving and im in the 11th grade already and im having a hard time getting over it. i tried to reason with my parents but they keep telling me how selfish im being and what not because my mom is getting a new job and my younger brother (7th grade) is starting a new school. i can understand how that makes me look selfish but i can't get over the fact that im switching schools at this moment. my sister who is 21 has her own apartment around here and i asked them to let me move in with her, but they said no, because i would misbehave and they couldnt leave me for 2 years. so i said they should let me take the greyhound or amtrack but they said someone would have to be picking me up from the station every morning and afternoon seeing as it's far from my destination. idk what to do now, and i feel really stuck. i was thinking i could get a chauffeur preferably a female, but i have no idea how to get my hands on one. please if you have a way that can help me please tell me. if you have any advice please give me. and if you're just gonna be mean and try to lecture me and tell me what my parents have already told me, please dont bother answering.