Psychiatry & Psychology--General/Psychology
What does a Psychologist do?
It may be a bit different in other countries, Bella, but in North America psychologists do university teaching, research, and clinical practice. Some do one only, some two, and others all three.
If you want to know more, you could go to a library, ask for help in finding a textbook in introductory psychology, and read the first chapter. Or see if there's a website for Philippines Psychological Association or somesuch.
Hope that gives you what you need, and good luck in your schoolwork