It is very important that, in using self-improvement as a strategy for personal success, you get the right help and guidance in how to improve your motivation and outlook on life in order to develop the correct 'expectation of yourself' that leads to ultimate success, and to accept failure as only 'a detour' and not the end of the world!
We can all learn from those that have achieved personal success, and while we cannot emulate the success that these people have attained, we can study their methods and how self-improvement for them was just another step along the road to their ultimate success. We might not succeed as they have done, but by following them and learning from them we can at least improve ourselves and give ourselves a better opportunity of attaining our personal goals.
https://www.theatlantic.com/politics/archive/2017/07/who-is-emin-agalarov/533127/