Most people don't grow up. Most people age. They find parking spaces, honor their credit cards, get married, have children, and call that maturity. What that is, is aging.
Get involved in an issue that you're passionate about. It almost doesn't matter what it is ... We give too much of our power away, to the professional politicians, to the lobbyists, to cynicism. And our democracy suffers as a result.
Teaching should be such that what is offered is perceived as a valuable gift and not as hard duty. Never regard study as duty but as the enviable opportunity to learn to know the liberating influence of beauty in the realm of the spirit for your own personal joy and to the profit of the community to which your later work belongs.