I've just read this article about a guy who asked multiple persons what it would take for them to reach a constant level of happiness? All of the answers, absolutely all of them, were money.   
Even before I read the answers, I said out loud "be happy". That would be, to me, the one goal, the one ingredient that would change it all. I know now that money would not make my happiness as my mental illness would always find a way to make me feel bad. So yeah, the only way to reach happiness is to be genuinely happy (which to me means self-confident, healthy, and independent).    
And I was wondering what would be your idea of happiness? Do we have a different definition of it because we know that sadness doesn't, unfortunately, goes when you pay a certain price?   
Let me know !