All progress takes place outside the comfort zone.

If you want to become a top skier it is stupid to stay on the beginners' slopes. There you will not progress, you will remain mediocre. If you want to become a top skier, you have to move on the most difficult and demanding slopes. And of course they will fill you with tons of discomfort. But this is a part of the growth process. If you do not feel uncomfortable, then you do not grow. On the most difficult tracks you learn the most.

This also applies in the business world. Resistance to change, absorbing and giving up to fear, staying in your comfort zone…this will only lead to a failure in your career.