I can sync Calendar from my phone to my Mac but nothing else.

I have an iPhone and a MacBook Air M1 cloud drive cannot be turned on for macbook air m1. On my Mac on the page named Saved to iCloud only Calendar and Calendar are turned on. Only Calendar is syncing from my iPhone. All the apps above Calendar are off and can not be turned on. When I click on iCloud, a window appears with the words, "Sync this mac". It is not an active button and the only remaining choice is the Back button. Both phone and Mac have the latest OS. I have spent many hours on YouTube without success. Thanks for reading this.