This Year Is the Chongde Year

Shi Xixue traveled through time. When she won her first international award, when she was lost in the applause and excitement of her fans, she realized that she had traveled through time as soon as she closed and opened her eyes! Yes, she has traveled through time! Shi Xixue's diary: After twenty years of Chongde, she came to a new society, In the 21st year of Chongde, they fell into a turmoil. In the twenty-third year of Chongde, she seemed to be alone again. How old is Chongde this year?