Why Psychology?

I want to be a psychologist because I am interested in the processes of the brain and how the mind works. I want to know how and why certain things affect people differently. I’ve always wanted a job were I could help and interact with people. Being a psychologist would fulfill both of these aspirations for me and the thought of being a psychologist excites me. I also have always wanted to have my own business and being a psychologist I would want to have my own practice instead of joining a practice for example like at a hospital. I probably would do both but have my own practice be my main priority career wise.