英语翻译I have had thousands of classes since I started school n

英语翻译
I have had thousands of classes since I started school nine years ago.But only one class was the most important.
It happened last term just after I had got a bad result in an exam.I was sad lost my confidence.I decided to go to a calss which can tell me how to be successful.
The speaker walked into the room.But he did not start talking like a teacher.Instead,he help us a twenty yuan note!
"Who wants this?''he ashed.Unsurprisingly,all of us in the class put up our hands.The speaker smiled.Then he put up the note on the blackboard and asked the same question.Again,we all put up our hands.The speaker smiled again but said nothing.Suddenly he threw the note onto the floor!Then he asked the same question a third time.
I didn't understand what the speaker was doing.Why was he asking the same question again and again?I didn't know what to do.I wanted the note,so I put up my hand again.After a while,he picked up the note and started to laugh."You have all just told me how to become successful,''he said to us with the note in his hand.
"The note is worth twenty yuan.It is always worth twenty yuan,even though I throw it on the floor.You are like the note.No matter what happens to you,you still have your worth.''
When I heard those words,I was deeply moved.Suddenly,I realized I was worth a lot.I may have not done well in an exam,but it doesn't mean I can't do well in the future.If believe in myself,I will be successful.

I have had thousands of classes since I started school nine years
九年前开始上学到现在,我已经上了上千节课了.
.But only one class was the most important.
但是,只有一节课最重要.
It happened last term just after I had got a bad result in an exam
那发生在考试后.那场考试我考的很差.
朋友.我临时有急事.要走了.不然的话我肯定会译下去.见谅!