I'm really proud of your positive outlook of life. It can help so much in rough situations like that.
How about trying to find other ways and choices for your life. May your parents don't allow you to work but if you found a job, may could you provide for yourself? Like MNCOWGIRL said, may there would be some kind of scholarships or other help available too? If not for that school, may there would be other interesting schools or a way to study that vocation as part-time?
I suggest you to weigh what are the most important goals for you, routes to reach them, what can you stand and and what want you to make your life then work toward that. Despite of it if it means finding your own way or following your parents' way for a while at first.