In my stories, I controlled what happened in a way I couldn't in real life. My characters lived through the horror and degradation of the cruelty of others and they not only survived, they thrived. They gave me hope and laughter, and they kept me going in spite of everything else. They were my heroes.
As a surgeon you have to have a controlled arrogance. If it's uncontrolled, you kill people, but you have to be pretty arrogant to saw through a person's chest, take out their heart and believe you can fix it. Then, when you succeed and the patient survives, you pray, because it's only by the grace of God that you get there.