Help on convincing mom to let me transfer?

I’m a freshman that goes to Queen Of Peace Catholic High School and I want to transfer to Chicago Academy for the Arts but I have a feeling my mom won’t let me. She choose this highs school for me without even asking for my opinion about if i liked it or not, she planned it all alone. I’m not happy being there, I feel miserable there because it’s no fun at all and I really regret my mothers decision. I have passion for art and I would be really grateful to be there. I just wish I can make my own decisions once in awhile without being scolded for no one reason. My cousin who is 30 graduated from there and didn’t like it either. I just don’t want to remember my high school as nothing I wanna have a good time and meet people who share the same talent that I can relate to and I’m interested in drawing by the way. Im sure there is no difference in the two schools.I live on the south side and the school I want to go to is in the West side. They both are private, highly educated, and appropriate choice. I want to know if you have any advice, tips, comments and answers on how to convince my mom to let me transfer because I wanna go there so bad it would be a life changing experience. I am very sorry that’s is question is long but I ‘ll really appreciate it if I have as much answers as possible. Thank you