It might feel good to be done with them all and have your final say but when it comes to family and friends I'd advise you not to draw any lines in the sand or burn any bridges.
Offer them no explanations or excuses as to your new lifes course as it relates to the JW religion. Just keep what you know to yourself and go on about your business and sustain as little damage as possible. Why not have your cake and eat it too? It's not your responsibility to save or enlighten anyone else or suffer for some noble cause. That's one of those JW things you have to rid yourself of.
I've found that JW's are puzzled and even intrigued when they realize that they and their religion are mere passing thoughts to you. They are almost disappointed when you don't become a raving apostate who's life has become a train wreck.