Certainly if you are looking for happiness, you are on a fool's errand. It's not "out there." Out there is chaos baby. And chaos is not happiness.
And it's not "in here" either. Look inside and there's a war going on. A war of emotion and crazy-ass thoughts burning and churning.
My best advice on the happiness front: throw yourself head first into something that fully, completely, madly engages you.
I'm not promising happiness, but most likely you will be so deep into whatever you are doing that you will forget about that mad quest.
And then maybe, just maybe the clouds will open and some glimmer of something will light you up.