I know from experience it's hard to decide what topic and subject to write about. However I learn to form ideas from reading books, articles, and newspapers! Basically I form my own opinions in my Essays by setting examples.
I would explore topics, Brainstorm what you like to write about from what Subject?
Depending on your Course, normally the instructor will give you topics to write about! Or if a topic is one of your own be sure that you get approval from your instructor before going on!
Your instructor will give you guidelines for your Essay. We do need more specific details in your assignment in order for us to help you out.
Teri Jordin