"Be cool to people. Be nice to as many people as you can. Smile to as many people as you can, and have them smile back at you."
I'm not saying I've always been happy, I was very dark early in my life. When I was young, when I was in my early twenties and my teens, I was not a happy person by any stretch of the imagination, not even remotely. But I knew it was possible. And because you manage your life the correct way, because you get the to a situation where you have a lot of good fortune and you have a lot of good friends, literally your mental state becomes a happier mental state. People don't understand is a lot of the reason why you feel like shit is because your life f***n sucks, and you're supposed to feel like s**t to motivate you to get the f**k out of the life you're in. Whether it's a relationship, whether it's a job, whatever the situation is that sucks, whatever the thing is inside you that's rotting you out from the inside, whether it's you wanted to do something else but you didn't have the balls to pursue it, you wanted another girl but you couldn't keep her because you're a liar. Whatever the f**k it is that eats at you, you got to straighten that s**t out or you will never be happy. You can't just flood yourself with chemicals and trick your brain into thinking this reality is acceptable because it's not really what's going on. What's going on is you know that you haven't done the best that you can do.