I have to start by saying I'm not sure I really have an answer here, and don't know if I or anyone can necessarily give you a solid choice as this is a big life decision for you. I feel as though sitting down with people closest to you and letting them know how you feel may be a better approach, and here's why. If you come out at a large event like this people will obviously have mixed reactions, but I would be more concerned with having my family in my corner, and also have given them a fair shot at knowing before I came out. If your family knows, whether they like it or not, at least they're not getting blindsided and then asked a million questions about something they had no clue about. Of course, only you can make the right decision for yourself based on your conditions. If you're going full time, more power to you. In my situation, I let family and close friends in on who I was over several months. Before the end of this year I hope to be full time. Good luck with everything!