Lacking an external focus, the mind turns inward on itself and creates problems to solve, even if the problems are undefined or unimportant. If you find a focus, an ambitious goal that seems impossible and forces you to grow, these doubts disappear.
Tim FerrissExcitement is the more practical synonym for happiness, and it is precisely what you should strive to chase. It is the cure-all. When people suggest you follow your "passion" or your "bliss," I propose that they are, in fact, referring to the same singular concept: excitement. This brings us full circle. The question you should be asking isn't, "What do I want?" or "What are my goals?" but "What would excite me?"
Tim Ferriss