I would take a few courses in psychology, see if it interests you; very little of your undergraduate studies will be about psychotherapy, which I think is what you are saying you would like to be, a clinical psychologist? There are many different kinds of psychologists, most of them do not see clients.

Seeing clients is about communication and interaction, not just listening and sympathy is not really involved but empathy is and it helps if you know yourself completely (you will have to see a therapist as part of your training to help you do this) and are very aware of or have resolved your own psychological issues. If you do not enjoy interacting with others then you may not enjoy being a clinical psychologist.