How do I get a late start in the field of Psychology?

I'm 25 years old (out of college for about 3 years) with a background in Organizational Communication and a minor in Spanish. I have always been interested in Psychology and would like to go back to school and pursue therapy. I'm not sure what I should do or where I should start. I have considered becoming a master's level nurse practitioner with a focus in psychology but I am unsure. Please any suggestions would be greatly appreciated.