Please help me to write an essay

Hi I am a HS Sophomore and applying to Georgetown University for summer program. So I have to write an essay based on the question 'Why I want to attend the Hoya Summer High School Sessions at Georgetown University?' For my answer to the why I want to attend is gaining college experience as a high school student, academic growth, networking with others and getting acceptance to competitive colleges. Now have never written an essay for college so I am a little bit nervous. So it would be very helpful if you could help me into this. I am an immigrant to this country and I think this information would help you to understand my situation. For more information about me and my EC please feel free to DM!