20 Year Cleaning

I have been cleaning my office for 20 years.
There is a saying, “Great 10 years, Amazing 20 years, and Historical 30 years.”
Though I passed “great 10 years” and has reached “amazing 20 years,” my state of mind for cleaning has been changing.
36, 37, and 38 years old were my worst years.
The bubble economy was broken and I did not know how I should have done.