I don’t think there is someone out there who doesn’t want to improve in some way. Even if you are very competent in a specific field, you can always get better.
This procedure of improving yourself never stops, even if you are the best. Will Steph Curry ever stop training his shots? I don’t think so!
So you want to get better in some aspects of your life. Maybe it’s your work or social skills, your relationship, your fitness or whatever.
Improvement is a mindset, is a way of living and behaving. If you have the right mindset, you can improve anything.