This is a hard question to answer. Everyone fears losing their family when they come out. I have had friends who have been kicked out of home. I have not grown up in your world but I understand your fear.
All I can say is that you should think it through. I would never tell anyone to stay in the closet but coming out is a very personal experience. I guess if I was in your situation I would think about who I wanted to be. I am a great believer that all things happen for a reason.
One of the reasons I told my parents I am gay is because I wanted, for better or worse for the to know who I really am. Your parents may surpise you but then again they may not.
It may be better to wait until you have your own independence.
I can't give you the answer to this question but in all our lives there is a cross road where we must choose who we will be. The love of family is important but equally as important is your own love for yourself.