Nostalgia and its translation?

When I was young, nostalgia was a small stamp. I was on one side and my mother was on the other.

Homesickness is a small stamp when I was a child. I'm here and my mother is there.

When I grow up, homesickness is a narrow ticket. I am here and the bride is there.

When I grow up, homesickness is a narrow ticket. I'm here and the bride is there.

But later, nostalgia became a very low grave. I was outside and my mother was inside.

Later, homesickness was a low grave. I'm outside and my mother is inside.

At present, homesickness has become a shallow strait. I am on this side and the mainland is on that side.

Homesickness is a shallow strait now, and I am on this continent, on that side.