It is time once again for the bi-monthly feature: Letters to My Younger Self. If you'd like to catch up on this series you may read more Letters to My Younger Self HERE and HERE. What would you tell your younger self? Dear Young Christine,Be kind to your body.  Gone are the days when you can eat two BK Chicken Sandwiches and not gain a pound (I still can't believe that you ever did that!).  You…