EDIT: I noticed that my profile says that I'm 12, even though I set my birthday to 1995. Is this normal?
Yeah. Just some odd "feature" implemented by Pescado that we're stuck with. He calls it the 'Rule of Six." You're 12 until you're 18, 18 until you're 24, and so on. Totally pointless, so just ignore it.
Oh, and welcome to InSim!