I'm working on my UC Personal Insight Question and am answering the one that wants you to describe the most significant challenge you've ever experienced. I want to write about how my dad left when I was 7 years old and that although I thought I wouldn't amount to anything if he didn't believe so, I eventually realized that I did not need a father to believe in me, I only needed to believe in myself. Is this ok? I read online that it was a big red flag to write about family tragedies or events. If it is ok, would it also be fine to go more in detail in my common app essay? Any help would be greatly appreciated!