Normalcy is comfortable and that is why when we're stretched beyond what we've been previously accustomed to, we resist. We resist change, elevation, and promotion because we sometimes experience feelings of inadequacy to advance to the next level. But it's time to start giving God's creation a little more credit then that.
God's design for our lives aren't always predicated upon our current capabilities. When there is purpose on your life for a specific task, He will equip you for it. Have you ever been called to do something that you've never done before and you turn out to be absolutely great at it? Sometimes faith is necessary so if or when you find yourself experiencing negative emotions of 'not enough', use your faith to press through.
Everyone is designed to triumph over the many obstacles that we'll encounter upon our individual paths. But for every obstacle we're equipped through growth, faith, and development.
So don't short yourself. Be encouraged to come out of the box and experience what the life has to offer you.