I'm from South Korea and I don't know what to do

My parents want me to be a public servant so they will send me to prep school for public servant(in korea, it's called 'Gongmuwon Hakwon').

The problem is one of the schools is private boarding prep school for becoming public servant, which controls person very strictly.

 As for me, I really hate to be controlled my freedom and behavior by someone, and I think I would rather get a job at the private enterprise than be public servant for me.

Although I have a mind to be a public servant, I would rather go normal one not an private boarding, but my parents prefer me to go private boarding.

I'm too weak to persuade my family, so I considering to do suicide for seriously

Is there any idea to get out this situation without do suicide?