I learned a hard lesson in one of my start-ups - the company is NOT your child. That start-up did in fact give me a sense of satisfaction that I was making the

I learned a hard lesson in one of my start-ups - the company is NOT your child. That start-up did in fact give me a sense of satisfaction that I was making the world a better place (think of the Rural Electrification act's effects). I worked for another 15 years at a company I really didn't care about. It wasn't as satisfying but I also didn't have an emotional attachment to it. Now (I'm over 50), I think I've found a balance ... I find my work fulfilling but it isn't the only the that defines my mood. I would say that perhaps you need a different job but you'll have to decide what you're passionate about.