Andrea,
Very sorry to hear that your family is reacting that way, I've been through it and I just got to the point where I can only just laugh at or ignore the rude comments. It never really stops, at least it hasn't for me. But like Courtney says you need to tell them that the way they are acting is hurting you. It's a hobby that you love, and they are downgrading you for it. In the end if they still have a problem with it, fine, they can not come over it's their problem.