Wolfy, you will eventually grow up and get your own place. You already know that this religion is not for you. This doesn't mean you have to lose your family. If you don't get baptized, they can't DF you, therefore, your parents don't have to shun you.
I am an example of how you can still maintain a relationship with your family but not be a JW. It CAN be done. It's not easy all the time. Remain kind and loving but firm. Even if they withdraw from you, keep in contact. You can do this a number of different ways now with technology being what it is. I always called Mom and Dad on their birthdays and Mother's and Father's Day. They'd always say 'Oh we don't celebrate this' and I would say 'I know. I just wanted to say Hi and see how you're doing as I was thinking of you'. :0)
Never let this religion win.
My Mom has been gone for close to 12 years. Now that my Dad is ill and in a nursing home, I am having to go through and clean out their things. I found a 'sewing kit' that my younger brother had made our Mom for Mother's Day years ago. It looks like a large match book but inside is a needle and some different coloured threads. As a JW my Mom, who didn't believe in Mother's Day, kept this Mother's Day home made gift from her son.