The real wisdom here isn't about self-improvement—it's about breaking the exhausting comparison machine that modern life runs on. By anchoring progress to your own timeline rather than the performance of others, you're also protecting yourself from the particular despair that comes from measuring yourself against people in entirely different circumstances: different resources, different luck, different starting points. A musician practicing today should only care that she plays better than she did last month, not that she'll never be Yo-Yo Ma; this simple reorientation takes the poison out of ambition and lets it become something sustainable rather than corrosive. The quiet strength in this idea is that it makes excellence available to everyone, not just the naturally gifted.