Joke Collection Website - Mood Talk - About 30 years old, what mistakes have you made before?

About 30 years old, what mistakes have you made before?

My mistake is that I don't cherish time. I didn't cherish the time to study hard when I was studying. When I grew up, I still didn't cherish time and didn't work hard when I should. So I feel that I have lost a lot, and now I really regret it in time, so I will work hard and cherish time whenever I do anything.