It would be wise to get your undergraduate major in psychology, since many graduate programs in psychology will require it. Even in your first year of university, it wouldn’t be too early to identify some graduate programs you might be interested in attending. Find out exactly what they require for admission so you don't waste time later, by going back and taking courses you didn't know you needed.
When you do apply for graduate school, it would be extremely advantageous if you had research experience under your belt. Get to know a professor in your undergrad years that conducts psychological research, and offer to work as his/her assistant. This professor could eventually become your mentor if you prove yourself to be humble, reliable, and dependable.
Related Careers
Psychologist
A psychologist is someone who studies mental processes and human behaviour by observing, interpreting, and recording how people relate to one another and the environment.
Social Worker
There are two main types of social workers: direct-service social workers, who help people solve and cope with problems in their everyday lives, and clinical social workers, who diagnose and treat mental, behavioural, and emotional issues.