I'm an optimist and my heroines seem to be that way, too. It's too much work to be cynical and distrusting. That doesn't mean I create perfect stories and perfect people, however. What this means is that my stories are resolved in a manner that leaves the reader with a feeling of hope and happy expectation. . . and wanting to reach for another one of my books.
You can be the greatest guy in the world but if you ain't got no heart, you ain't gonna survive.