Experience gained from your own mistakes is the best basis for further development. The main thing is to be able to learn a lesson from your failures, and not to stand stubbornly on your own. However, it seems to me that there are no rules for success. To achieve some peaks, you have to be yourself, not try to reshape your essence, hypocrisy, but it does not mean that you have to stand still. Expand your horizons, learn something new all the time, improve your skills in a certain area and the reward will find you.