Okay, honey, don't get too upset. I do know what you're going through. I'm going through it too.
I'm sure you know your parents love you, but this is about you now. This is your future, and it's your life. If you want to get away, you have every right to. You might have to pay more money, and you might have to become a bit more self-sustaining, but it will be worth it because you will be doing something that you're proud of. Tell your parents that you love them, and that you appreciate all that they've done for you, but now it's time for you to go live your life. And then tell us how it all goes. :)