you have to fight for what you want
It's kind of hard, near impossible, to have that mentality when you're a teenager pre-college. If this was a different kind of scenario (like Lunatic was in college or living life post-grad), that advice would be inspiring, but telling him to fight sounds like you're telling him to be disobedient to his parents, which is awful advice.
Look, Lunatic, I understand that you want to put time into music, but you need to do what you have to do now in order to have the freedom you desire. Just graduate high school and you'll be able to do what you want during and after college (assuming you go that route). If you can produce for an hour now, isn't that better than having that time taken away from you for being disobedient? Then you'll just be even more upset.
tl;dr: just finish school and you get to create as much as you want.