Hindsight Bias and Personal Identity Based Narrative

It is all too easy to say that certain events and circumstances caused other events to occur, once both happened already.

For instance:

I am strong willed because I suffered physical child abuse.

I'm analytical because my parents were so simple and I wanted to rebel.

Anyhow, basing current life choices on how we perceive previous events isn't necessarily wrong--there's definitely a piece of the truth in there--but it isn't necessarily right, either, and it may be useless (except that it makes for an interesting story).  Unfortunately, our brains are very good at creating stories for our current situations, so good that it happens naturally and we often don't notice that we've been telling ourselves certain things about ourselves.