Q2: I don't understand the question.
Q3: You can probably increase creativity by creating things, but that's not really much of an answer. Stop thinking too much, stop worrying about results, and reach a state of flow. When you create, it's not about the creation, really. Nor is it about you, meaning your ego. It's about being. When you're really there, you're everywhere. If you're not there, you're just making it hard on yourself.
Q4: Correlated? Yes.