Life and the tricks it plays on you

Over the past academic year I made several good friends, lost some great friends, and been so confused I am not sure what even happened. It seems as though the rule "You can't please everyone so make sure you are doing what you want to" doesn't always seem to work. There were a few instances through out the time where I had to make decisions on what to do in a given situation like two events going on at the same time what one should I go to? I know this is what I should do but there is no way I could do that now. Through out playing the game of what I should do I came to realize that there are only certain parts of my personality I can share with each person because they either think I am a liar which I am not or think I am a complete idiot if I were to do something in which I love. For instance with one group of people they know me as a very crazy, fun loving, dancing fool, do what I want and not really care what everyone else thinks person which I am. The problem comes in when people that see this part of me think I am just making it up to fit in and not really think of it as truly being myself.