Hi, Dr. Kirk! I find myself being very drawn to psychology and social work after a lifetime of working in business. I even took a semester of graduate school classes in social work. My question is, I am 50 years old, and with the time and cost of graduate school, will I be able to make a difference in a new career in this field? Am I too late? Is there enough time? Could I contribute to social work into my late 60s?