To OP: I hope things are better for you and that you've learned how to cope with oncology. I just completed my first day of clinical rotations at an in-patient oncology unit, and to be honest, it was overwhelming.. I feel the same way you felt. I was crying during my drive home because seeing very sick elderly patients in pain is simply heartbreaking. Despite my depressed mood, I know that nursing is still the profession for me. I just gotta get over this mindset!