Answer: I would suggest you pick a topic that is most unique to you and that you would be comfortable writing about or relating to.
Explanation: Sorry I cannot give you a direct suggestion. It's because I am not in your life and my opinion might be different from yours and what I might feel comfortable writing about or what I feel comfortable relating with might not be the same for you.
P.S: Choose something you are comfortable with so you will not get stuck and mess up your work with unclear statements.