All kinds of divination are ok.
Numbers are also divination and energy, just as cell phone numbers can also be used as an aid.
The more you use it, or the more your name is called, the higher your energy will be.
If one of the five elements is missing in the horoscope, you can change the horoscope slightly by wearing something, changing your name and choosing a number to supplement the missing aspect.
I hope I can help you.