Then, is Wesleyan a perfect school to satisfy my goal as the influential leader in the future?
This part is where you go wrong, I think. ow about changing this sentence to say this:
Wesleyan is the perfect school to prepare me, because of its _____________, the __________, and its _________________.
This will establish a good structure for the essay. In the body paragraphs, you mention several important points. So, introduce them by filling in the blanks above and using that as your thesis statement at the end of para #1.
I think as you revise, you should write more about your aspirations, not just about the school. Don't just say you have no plan. Say what you can about whatever plan you have in mind.
:-)