You are in the Officers Mess because you are priviliged, as are the permanent members of the Mess, to have been granted Her Majesty's Commission.
Yes; the Mess is the home of those who, for whatever reason, "Live In"; but it is also your home whilst you are on temporary duty at that Station.
Absorb what has been said in the posts above this (disregarding the malign and insulting) and remember that you are priviliged to be a member of "the Finest Club in the World".
Enjoy yourselves, and pass on your enthusiasm to the young men and women who have volunteered to be members of your Units.