You commented a bit on the rest, but did not mention anything for the intro.
^I did not comment because it was quite frankly, a 'no comment' introduction.
It is just boring, and common. Remove it in it's entirety and think of a better way to start your essay. Be direct. Be informative. But never. Never be lame and boring.
Also, the "captivated me and fueled my insatiable curiosity. I was in an environment where I could observe and interact with a good representation of people from all sorts of different backgrounds." was supposed to have a period
^Ok, but all of that has no relevance to your academic interests. There can be a link between this and psychology, I am not denying it. But from what you have provided, you are just rambling off topic.
My next sentence, is very important, and I will have it highlighted in bold
DISCUSS YOUR ACADEMIC INTERESTS AS INSTRUCTED BY THE ESSAY PROMPT.