Paul Graham's lecture recently really cemented the idea of having a good life is just work on things that interest you and maybe something comes from it but it doesn't matter because you are still doing what you enjoy.
Exactly! People want things to come from it so they can finally do all they wanted. Why not do it now? Then adjust your priorities, lifestyle and consuming patterns as to lower both your needs and expectations, and you're less likely to feel let down by life. Does not work for power-hungry needs, of course.