I'm in fifth grade, and my friend is leaving. I want to write a poem and a song for her. How should I write it?

I have experienced many summers.

But I will remember that day.

Watching you disappear in front of my eyes

The suitcase is full of our friendship.

The dribs and drabs around us in my mind

This summer is too hot.

But my heart is so cold.

You and I can't see each other's tears

But I can hear the echo of water drops in each other's hearts

Maybe you should remember a lot of knowledge in the future.

But don't forget to make room for our memories.

This is what I want to write at once.