How old are you? Are your family JWs or are you an adult and joined on your own? If so then just leave, and tell them to go the fuck away.
But I will tell you that no need to worry about ones disguising to look for somebody like you and really track them down. That would be an insane amount of work and nobody will be doing that. If you have FB friends and jw on social media and they see you changing, THAT can get reactions.