Really, it is my considered opinion that once you have left, and tasted freedom of thought and action, and found wonderful friends in the real world, you will say, why the hell did I not do this LONG AGO !
It is actually horrible to be a liar, and by pretending to believe, you are lying to the people you say you respect and you want to be your friends, that Sir, is a low, dirty trick.
Be truthful to yourself, and your "Brothers and Sisters", they at least deserve that.