I think it's an amazing quality to be able to roll with the punches and not be totally ruined as a person because life's been rough for you. That's a really admirable way to go through your life.
I think that in itself is kind of an amazing achievement to be able to say that your full-time career is in any creative arts, let alone a show that has kept people interested for coming on four seasons and hopefully more.
I just do what feels right. I think the great thing about getting to do what I do is that you can try out being a different person without having to screw up your life to do it.
There are very few films or plays or anything about really happy people with perfect lives. Everyone is usually screwed up in some way and that is usually where the work comes in - figuring out how to make it believable and make it real to present someone.