The major factor that burned me out in my twenties was my feeling responsible for that over which I had no control. I had no control over patient compliance or patient happiness, and yet I felt responsible for both. When a patient was unwilling to comply or to get emotionally healthier, I felt like I had failed. Stepping out of practice for a season allowed me to re-evaluate and re-define the purpose of being a physician, to determine how I want to perceive and experience the practice of medicine (which includes wise boundaries), to find fulfillment in being a compassionate witness who uses scientific knowledge to alleviate suffering.
Another factor leading to burnout was my internal perfectionistic expectation that I had to know everything. Doctors are always reading and learning, and there are tiny slivers of time in clinic to look up information, but self-pressure to know it all will only lead to performance anxiety. It’s far better to enjoy the lifelong medical learning without the inner perfectionism that kills both curiosity and enthusiasm.