Add the digits of your birth date until you get a single digit
Add the digits of your full birth date in day, month, and year format
Reduce the total by adding its digits repeatedly
Use your name by assigning numbers to each letter and adding them
Reduce the name total to a single digit
Add your birth number and name number if needed
Reduce the final total to a single digit
Keep master numbers 11, 22, and 33 if you use that system
Use the resulting number as your lucky number