Best and worst moment of your life????

For me the best moment is when I met one of oldest and best friend of my life. He is the turning point of my life and he has done so much good things for me in my life. I think meeting him is the best ever moment in my whole life. And the worst moment is, when I left the university. The farwell day of my university is the worst moment. I had a lot of friends there and have enjoyed so much in college, and on the farwell day, we have to leave everyone. Even though I have contact with some of my friends even today, I do not have contact with all of them and the some of the peopled I loved. So obviously that is the worst moment of my life.