On to college and to the path of becoming a doctor?

No one major includes all the premed classes. They're taken in addition to a major. A psychiatrist goes to med school, but a psychologist goes to graduate school instead, and you must major in psychology to go to grad school in psychology. If you don't know which you want to do, major in psychology and take the premed classes so you can do either - but both require a very high college GPA and test scores.