Find places or circumstances where the rules don't work, and invent new rules that do. This is science. I have come to believe that what you are and what you are capable of being is at a very basic level really the sum of everything you know and everything you have been. Everything you know influences what you will be and do in the future in ways we can never know. Everything you could have known and do not, therefore, makes you something less than you could have been.
Good judgement comes with experience.
Experience comes with bad judgement. First I shall test by experiment before I proceed farther, because my intention is to consult experience first and then with reasoning show why such experience is bound to operate in such a way.