Management of the state is not a matter of the lungs. If you "were lucky enough" to become ruler of Scotland in the middle of the sixteenth century, you are unlikely to be delighted. There is no end to wars, your family is no more alive, eternal intrigues, rumors and conspiracies. You can laugh at how he was born, right in the crown. When this pressure is around, it's hard not to go crazy.
Little Mary Stewart was born Queen. She will have to experience all the horrors that fate has prepared for her. Watching her life, you can very much sympathize. Enemies do not slumber, but the young monarch has friends. She will go all for her country and send her to a bright future. But will it end on this? Traitors will not be satisfied until they quit the queen.