I need not emphasize the importance of your choice of career pathway. Rather, I would only encourage you to remember that you are selecting a career, not a residency. Few of us knew what we wanted to be the day we were born. Most of us have many choices.
More students have trouble making the choice than are called to a specific discipline.
Therefore, it is crucial in working through your options that you consider your career in the context of your life. These are the larger questions involved in choosing a career. The answers may not come easily, and they will not come from one place. It is crucial to involve the other significant people in your life in making the decision. It is also crucial to understand exactly what you are getting in to.