This is a great video I found on happiness.

He explains how it's very subjective, and oftentimes we fool ourselves into thinking an outcome that's logically beneficial is going to make us happy.

I'm really big on shaping our perceptions to help us adapt to whatever circumstances life throws at us.

It's definitely worked for me, and I still push myself this way. Especially when I catch myself focusing on the wrong thing (or my wife points it out to me)...