My iPhone say my storage is full but it’s not full

Diddybuilt wrote:

I have 2TB

You have plenty of iCloud storage. That’s very different from iPhone storage.

What's the difference between device storage and iCloud storage? - Apple Support

You need at least 6GB of iPhone storage free at all times.

I have 2TB

Not on an iPhone you don't.

Tap Settings > General > iPhone Storage

What does it say next to iPhone? It will display as xxxGB of xxxGB Used.