Find the beauty in yourself and let it shine, you have everything you need within you to do this task. But if you need help then I will suggest you ask the gods of old for help. You can ask Hermes who is the shepherd of the roads, because he has help many souls on their journey or ask Bragi to sing one of his beautiful songs so it can carry the girl safely to the underworld. The thing is that when we start to wonder we often start to doubt ourself, but when we just do things, it is like we just know how to do it. So just believe in yourself that the light in you is enough and always will be.