HOW CAN I GET MY MOM TO GIVE ME SPACE?

I'm was born with spina bifida so I can't walk and I'm also in a wheelchair and every since I was born my mom has been soooooo protective over me but now it's the summer and I'm almost 17 she get mad everyday and scream at me because she say all I do is sit in the house on the computer but all she want to do is drink and party all the time sometime I think she wish she never had kids she want to control my EVERY MOVE but I would like some freedom to go hang with friends and and my boyfriend (THAT SHE DOES NOT KNOW ABOUT BECAUSE SHE WOULD GO CRAZY) I also want to be a model I wish I could go and she would not worry about me I feel like she is hold me back more from my life she gets really mad when I don't want to go anywhere with her because she is no fun and is very embarrassing. every time I ask to go somewhere with my friends she say no and don't give me a reason why...she never did anything like this to my brothers when growing up she let them go where ever they wanted I also think she takes her problems out on me because her and my dad are not together anymore and she is mad that my dad has a girlfriend but she has a boyfriend.I tried talking to her about this that didn't work...I don't get why is she treating me like this.HOW CAN I GET MY MOM TO GIVE ME SPACE???