Nobody really likes to be lectured a lot. And, therefore, if you want to be an effective person, what you don't do is scold the person publicly all the time.
As a culture, we are not comfortable with mortality. We do not accept it the way other cultures do. We cling to youth, and we don't want to die. It's like, 'Well, too bad, we do.'
Sometimes, you have to step outside of the person you've been and remember the person you were meant to be. The person you want to be. The person you are.
What do you want to do sadhana for? The aim should not be the satisfaction of egoism: "I want to be a great yogi; I shall have so much power and with that power I shall establish myself in the world." All such thoughts must be thrown far away.