I never appreciated 'positive heroes' in literature. They are almost always cliches copies of copies until the model is exhausted. I prefer perplexity doubt uncertainty not just because it provides a more 'productive' literary raw material but because that is the way we humans really are.
Perplexity is the beginning of knowledge.
If I was sad or afraid I would sit in a corner and sing. If I was happy I would jump into the middle of the room and sing. It was how I expressed my emotions.