Meth addiction/ emotional abuse Memoir. A few questions.?

I am writing my memoir about my past abusive relationship that lead to meth addiction. First, I am wondering if it is ok to use real first names. I have researched this and am getting conflicting answers. I’m wondering your opinions.

Also, I am wondering how to start the book. I would like it to be known that I was a very good kid growing up. I never once got in trouble at school or at home and all of this happened suddenly. I want to begin with something to hold the readers interest but not reveal too much in the beginning. I am wondering if anyone else has had this problem?

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