motivation to study psychology

well, today I'm going to talk about the "motivation to study psychology"... very difficult topic.
When I got into the carrier I felt that I knew that I want, but when  time passed I realized that my likes had change.
When I got into I want to help people, makes changes in  the world, learn about the human mind, and the animal mind too,I thought  that I could do many things for the people in many areas... but now, I don't know which is my motivation to be here..
I love psychology, and I think that is very important to everybody, but  I think that is nice and interesting but only to know about it, I don't want to be a psychologist.
This idea is very different to my oldest idea about psychology because when I started the carrier
I really wanted to turn me in a psychologist.
 I still love the psychology , but not the practical psychology, I love the experimental psychology, the evolutionary psychology, and the comparative psychology.
This areas are very unpopular in the practice of psychology, because this works preferentially with animals.
well, after that, I have to say that I what to still learning about this topics, I really want to made researches  and find new things! I love human mind and I think that is the most amazing thing in the world, the most mysterious and complicated. For this reason I want to be a researcher and no a psychologist.
But obviously i will still working with mind and cognition, but this way of work don't be in a  therapy.
The knowledge that the researches does are important and this findings are the basis to a lot therapies and theories too.
So, my motivation to still be here studying psychology, is know more about the mind and maybe makes researches to enhance this knowledge.