Don't worry if you don't fit the mainstream mold of success. Who wants to be moldy anyhow?
For those of us with plenty of employment, yes we can be miserable because we hate our job, and because we have so little time and energy. For those of us without so much employment, yes, we can be miserable because we can't afford to live the way we want to. But let us only be miserable for those things that truly matter to the quality of our life, and not be miserable because we've failed to live up to some notion of what successful people are supposed to do.