Well there are conventional teachers and professors who have taught me fundamentals.
But whenever I seem to get overwhelmed and think that I have taken on too much, I almost lose sense of what creativity really is. When this happens, ask a five year old to design "the perfect car" or something else that is really open-ended. You'll be AMAZED with the responses. Who knew cars could have feet? or wings? or a special dog steering wheel up front, too (because dogs are super navigators).
Those kids are GREAT teachers.
AND, I learned this exercise from a wonderful professor of mine. (Hi, Ken!)