Doing numerology readings is the main activity for improving your knowledge and your skill with the subject. Provide free or paid readings. Do whatever you need to do, with integrity of course, to get willing agreements from people for you to do a reading for them.

Readings may be formal or casual, recorded or not, whatever you're most comfortable with. The more readings you do, the more you understand people. The more you understand people, the deeper you'll understand numerology.