Should fortune tellers use their real names or their last names?

The relationship between names and fortune-telling is like this.

If you simply tell fortune, you don't need to add the name factor. Just like astrology, you don't need a name when setting dishes.

But the role of names is powerful, because names have the harmony of their five elements, which can assist the changes of life.

Therefore, when telling fortune, you don't have to give your name, but you should give the name you are using.