At some point in your career you will be asked to do a bigger and harder job where you lack experience or know how.

These types of opportunities only come your way if you have demonstrated to others that you are capable of stretching and delivering consistently quality results.

This is scary. Do it anyway. If you have a good boss, and you are not afraid of hard work, then do it. Do not be afraid to ask for help. Work harder than expected, be optimistic and grateful.

Do not turn away from hard problems. This is the fastest and best way to accelerate your growth.