I would think more pragmatically - who really needs to know? I mean if you don't have a great relationship with your folks for example, does it really matter to them what your sexuality is? I would tell those who care about you in your own time, there's no rush and it's not something that can just be got over with - there's a time and a place and i think you'll know when the time is right. Have you joined the LGBTQ social group? It has a forum as well as a message board so it might be useful to place your question there as well if you haven't already. Folks are very supportive there and i'm sure they'd be happy to help you as best they can. Good luck.