Memoir Topic

If you had to write a memoir about your life, what would you focus on?

For my master's thesis, I decided that I wanted to explore the memoir, and he has offered me the option to actually write a memoir instead of just researching some focused topic related to the memoir. I have to select memoirs and read them carefully, learning how I can craft my own.

But when it comes down to it, isn't it strange to analyze our lives and pick apart single focuses of difficulty or a time/period of learning? I find it hard to take my life and stick it under a magnifying glass, even though I try to constantly, but I find it difficult to just choose one focus from life.

So, what would your focus be? I'm pondering a handful.