understanding

hi , am I for real wat the hell am I trying to put a smile on everyone's face ,, to people who don't even try to put one on my face , is there something wrong with me am trying to understand why am in this world only to make others happy but not me receiving happiness. As I look around me , am the odd one out my face is lightened up Everyday with a fake smile that everyone just assumes that is so real ,, people actually find it weird , if only they knew wen If I don't place it there all hell will break lose in my mind ,, so I stopped them from understanding.