I've posted quotes about happiness before, I know, but here's another person's take on how to be happy.
"The prerequisite for happiness is the ability to get fully involved in life. If the material conditions are abundant, so much the better, but lack of wealth or health need not prevent one from finding flow in whatever circumstances one finds at hand. In fact, our studies suggest that children from the most affluent families find it more difficult to be in flow — compared with less well-to-do teenagers, they tend to be more bored, less involved, less enthusiastic, less excited."
It is a constant struggle for me between feeling overwhelmed with my involvement in life, and wanting to be have the least amount of involvement as possible to escape from life a bit.
— “If We Are So Rich, Why Aren’t We Happy?”, Mihaly Csikszentmihalyi, American Psychologist, vol. 54(10), Oct. 1999