In short, yes I am. I have only told my best friend that I am a furry and he was kinda shocked at first and was asking questions but now he's ok with it. But, now he has moved to a different school so I pretty much only see him on occasion when we both go to orchestra (he plays horn and I play the violin so we're in different sections and can't see/talk to eachother). We still talk to each other over skype and play games over steam, though I try and stay away from furry TF2 servers for his sake...
I don't plan on telling anyone else yet, at my age, but I may drop a few hints here and there and if asked I will answer truthfully. I don't want to tell my parents, they are already coming to terms with my older brother being gay so I don't want to add to their troubles at the moment (especially with my dad as he's unhappy at work with all the stress). My brother is still awesome anyway, I haven't really seen a change.
So yeah, getting off topic a bit. Only my best friend, FA and FAF know I'm a furry.