Most teenagers and young adults do not know what they want to do for the rest of their lives. It is a big decision. There are a number of things you can do to narrow the choices. Foe example you can take an interest test, do some research on your own about a career, try volunteer work in the field in which you are interested, or "job-shadow", in which you spend a day with a person who is working in a field that interests you. These are just a few helpful ideas as you begin to choose a career.