Rayne,
I agree with Kathi, you should think about your next step in life. If living with you parents isn't a long term solution then you need to find a better situation. For the time being lay low and set your self up for success. Educate yourself, get a job, and focus on your future. It's the best way to ensure you have the ability to dictate the outcome of your own life.
I was very much in the same situation you are in. My folks are very intolerant. And although they love me a great deal, I don't know what they would have done had I brought my cross dressing to the forefront of our relationship. Living an honest life is great, in fact I often post about being honest with the people in my life. But honesty can be hurtful if used improperly. My cross dressing has nothing to do with my parents. So why should I feel the need to involve them in it?
So when I was 18, I left for school. I spent 8 years with roommates so cross dressing wasn't much of an option. I worked hard and earned a good job, my own place and a huge closet. It may seem like really far off, but have faith in yourself and you will make it.
And when you are all setup and you decide to go full time tell your parents, no matter how they feel you'll still have your life.
Good Luck,
Kasha
