It is so wonderful that you have such supportative people in you life. I'm really happy to hear your friend giving you such good advice and tips and not sugar coating things for you. Your going to do great. As for being open or keeping it to yourself, you have to do what is comfortable for you. I don't announce on facebook anything about my band, but everyone I am in daily contact with knows. And anybody who comments on my weight loss I tell. And even random people. I was turned on to the surgery and my surgeon by one of those people who decided to tell a random stranger at our daughters gymnastics (steph at dreamsofskinnyhighheels) and because of that I am completely open about mine.
@Justawallflower Thanks for the advice! I still hadn't completely decided because my weight loss is not really noticeable to others yet, but I was thinking of doing exactly what you said. I'm not going to announce it to all of my friends on Facebook, but I will definitely tell people if they ask. And of course all my close friends and family already know.