I would add that you are really young and there is plenty of time - don't give up on yourself leading a full and happy life on your terms in the future. Many teens are reliant on their families for their physical wellbeing and even their identity to some extent. All that will lessen with time.
As already said by earlier post I would focus on a support network - friends, collegues, teachers - and some type of education. If it's going to be a problem reserve all your strength for that fight first, even making concessions to your parents in other areas if you have to but get that education if you can you will never regret it.