You are called by Jesus Christ to His service, you may go forward with great confidence.

Because you are called by Jesus Christ to His service, you may go forward with great confidence. First, you may be assured that He knows you and your capacity to grow. He has prepared you. Calls will stretch you, often at the start and always over their course, but He will give you the Holy Ghost to be your companion.
Author: Elder Henry B. Eyring
Source: Watch Over and Strengthen