What kind of education do you need to become a psychologists?
you need to go to college for 4-8 years to become a psychologist.
If you consider just text book education then No. You need not know the text book stuff in order to become a UFC Fighter. However, you need to be trained in arts like Boxing, Grappling (Wrestling), JuJitsu etc in order to be successful in the UFC. If you consider learning those arts an education, then yes you need that kind of education to become a UFC Fighter.
You will still need to obtain the same education as a psychologist would in order to become licensed. The holistic parts of your practice would be a result of additional study and experience. Actually, psychologists do not provide medication--their focus is using tactics and other methods to help people.