I was born on the 18th day of the 10th lunar month in 2000. What is missing from my birth date and five elements?

Gregorian calendar: 0:00 on November 12, 2000 (Sunday)

Lunar calendar: October 17, Gengchen year

Eight characters: Gengchen Dinghai Jiaxu Jiazi

Five elements: metal, earth, fire, water, wood, earth, wood, water

What is lacking in the five elements: nothing is lacking

Zodiac: Dragon