Actually you do not have to leave
Don`t play the victim card
You are a survivor
As stated above you have the right to live your life the way you want to live it ,within reason under their roof.
The ball is in the court of your parents if they truly love you they will respect your decision .
If they have only conditional love for you , and want you out of their house , then it`s their decision not yours and it`s better to find that out now while you are still young enough to get on with your life.
I`m not saying it will be easy , it wont ,but if they want there life dictated too by 7 men in Brooklyn ,then you will know where you stand , and it maybe a wake-up call for you.
I feel for you & hope everything works out OK for you , and your parents.,sincerely.
smiddy