I have come to believe that as much as you strive to strike a balance, life doesn't really believe in that concept. It will always tip in the favour of one part and against another. If your career is going great, you might be struggling with family. If you're happy in your personal life, your health might be screwed up. If all seems well, there'd be a storm chasing you silently. The challenge, and the art, lies in finding enough balance to maintain sanity. That is about it. Expecting more is just unfair.