The practice of " on the one hand... on the other" and " ever since"

On the one hand my son enjoys school, but on the other he counts down until weekend.
On the one hand he's sleepy, on the other he wants to eat more.

I've been a housewife ever since I got married.
I've changed diapers everyday ever since my kids were born.
We've never been there since we moved.

Please check above are correct or not. Thank you!!

The rainbow

This evening it suddenly started raining cats and dogs . So I rushed to close the windows throughout the house in order to prevent rain from entering the house. But about 30 minutes later, I could see it was sunny outside from the shade of the curtain. When I opened the curtain to reopen the window, I saw a beautiful rainbow outside. I had not seen a rainbow over the last ten years.As it was so beautiful, I quickly picked up my i pad and took the picture of it. The rainbow disappeared in about 10 minutes, but I was lucky enough to see it.

Hitchhiking experience

Friend of mine, she hitchhiked in many places in the world.
Some people went out of their way to help her. (even people going in different directions!)
I am impressed with this story.