That's the crux of it right there. I've had a wonderful, wonderful life, a rewarding career, a 30 year marriage and raised intelligent, well-grounded kids. Not just by _my_ definition, but by those around me whom I respect.
On the other hand, just because you can survive doesn't mean life has to be this hard. And looking back I now realise that much of my life I was doing just that. I was surviving, when I could have been doing so much better.