It's a privilege to serve the Lord. As the Lord leads us, and according to our giftedness and life situations, all of us must serve the Lord one way or the other. Not doing so is a sin. In addition, we must have the right understanding of what it means to be successful in our service to God. Many people want to be successful. But we cannot define "success" based on worldly standards. Instead, we must serve God faithfully according to His standards of success.