Never continue in a job you don't enjoy. If you're happy in what you're doing, you'll like yourself, you'll have inner peace. And if you have that, along with physical health, you will have had more success than you could possibly have imagined.
I have no idea what goes on in another person's mind. As a legislator, I need to be good at persuading people, counting votes and getting to 50 percent plus one. I don't go back and say, 'Why did this person get to the right position?' It's only, 'Are you yes or are you no?'