Excited by the discovery of your magical healing powers, you think of ways to test your limits. After the success of your first test, you become more confidant in your abilities. Maybe a little too confidant, as you start raising the bar much higher. Several ideas pop into your head and you think of what it would mean if they were successful. The possibilities would be endless.
You recklessly start planning a much more dangerous test, not even thinking of the consequences if it goes wrong. You are confidant that you won't fail.