How Old Do I Seem?

So, a few days ago I realised that I have never actually specified how old I am in my “About Me”. I’ve always been told that I should older than I am (except, perhaps, when I’m fangirling) and so ever since then I’ve become curiouser and curiouser – based on what I’ve written and various conversations, how old do you think I am? How old do I seem?

I’m really curious! Please comment and tell me how old you think I am and why! ^_^