Saying no to others is tough, but saying no to oneself is even more challenging. To become more self-disciplined, you have to consistently say no to immediate gratification, doom scrolling social media all day, and say yes to all invitations or anything that catches your fancy. As  Lin Yutang, observed in The Importance of Living, “Besides the noble art of getting things done, there is the noble art of leaving things undone. The wisdom of life consists in the elimination of non-essentials.” Knowing life’s non-essentials is tricky, as one can categorize everything as essential. You could doom-scroll the internet all day while telling yourself, “I am building my brand,” or focus on vanity metrics instead of focusing on actionable metrics.