Thank you for your help. How to write a composition?

I clearly remember that an old lady helped me when I needed help most. She always wears a kind smile and is eager to help others.

I still remember that the car was crowded and dark that day. I think if you go home standing, you won't be exhausted!

After I got on the bus, I couldn't squeeze in. I managed to squeeze into the car. I have a look, and there is no gap between people. I squeezed hard and finally squeezed into the most empty place in the car. I'm tired from standing, my shoulders are hunched and I feel weak. My schoolbag seems to weigh a thousand pounds. Many young people sitting in their seats looked at me, turned their heads up and down to the direction of the window, and looked at the scenery outside the window as if they didn't see me. Just then, a kind aunt called me over. Her hair is black with white, her face has many wrinkles, and her figure is relatively fat. She said kindly, "Are you tired of standing, little friend?" Sit in my seat. "I quickly replied," no, no, I still have enough strength! " Aunt smiled and said, "I'm not tired. How heavy your schoolbag is! How can you not be tired? " Aunt smiled and pulled me over and sat me in the seat. I say thank you again and again. Aunt's behavior attracted passengers in the car. Someone said, "This aunt is really valuable." Others said, "This old lady is so sweet!"

The old lady was praised by everyone. She is really a caring person.