what events in jeanette’s life has made her the person she is?

This is really only a short-answer question space and your question is quite detailed. Jeanette is an empathetic girl to begin with. Her harsh life has made her very resilient to any problems she might face in adulthood. She is able to keep life in perspective because she has had so much perspective growing up. Even though her parents were neglectful and abusive, she still was able to see the good in them.