An embarrassing experience---draft two

I had an embarrassing experience when I was an elementary school student.
One day, when I went to convenience store to buy a bottle of soy sauce for my mother to cook dinner.
Then, I saw a familiar person walk across from the street.
After that, I called her name loudly.
But she didn't answer me.
I was so angry that I shouted at her.
People who were on the road looked at me.
The girl turned around and looked at me angrily.
Then, she said that I made a mistake.
Oh~My god!
How embarrassing the experience I had!
This is the most embarrassing experience I had.