Officialdom: Rising Step by Step from the Grassroots

Can the author not tell how old the protagonist is? He was 28 years old, 24 years old, 26 years old. He was 26 years old when he was in high school, and now he is 24 years younger when he is working. I would like to ask the author how old is the protagonist?

What are you writing about?

It's a lot of nonsense. I can't even tell my fucking age.

What is written, I can't even tell my age.