Does the act of healing from trauma prove that humans possess the free will to change their own destiny?

Why might someone request to keep their illness private and avoid sharing updates on social media?
Are the actions of a world leader simply the inevitable result of their psychological makeup?
Is it true that twin flames can reconnect in surprising ways, even if they're on opposite sides of the world?
Are there common traits or behaviors in "well-mannered" individuals that can still result in toxic relationships without them knowing?