以A bad experience day为题的英语作文，哪位亲告诉一下

I 'd like to share with you all my bad experience.
When I was in grade one here in this school,my teacher told everyone in the class to give a brief introduction in front of the classroom.Most of my classmate did very well.But when it was my turn, I walked very slowly to the platform,I fell down over one foot of my classmate.He tried to make a joke on me and he succeeded.At that time,all my classmates laughed very loudly.
I got up and went on walking with shyness,but what was worse,I fell down again by the platform.I didn't notice that platform was too high for me to step on easily.This time my teacher also laughed at me, and my classmates laughed again.I nearly lost all my face!
Then I said "good morning".My god,do you know what happened? All of them laughed the third time!! Because It was in the afternoon!
I know then I was too shy and a little nervous.I wish now you won't laugh at me.I will never forget that terrible experience all my life!