If you're competitive, comparing to others might motivate you to work harder at what you are hoping to accomplish. But for many, comparing to others is self-defeating. If you want to improve, the best person to compare to is yourself.
Who were you yesterday?
Who are you today?
Who will you be tomorrow?
Ask yourself these three questions to become a better you, day by day, week by week, month by month. Reach for your goals and take joy in your progress. :)