Except I don't have to prove I am a girl.
Prove it, you are just bullstuffting.
Of course you're not a girl, we know that. A typical menstrual cycle lasts for about a week, yours lasts for months on end (so far).
We want you to get a friend to do all that just so to prove that anyone could. You must explicitly say that its for a forum full of teen/preteen boys that play a LEGO-based video game.