Trying to reset phone, uploading items to iCloud preventing this

I am trying to 'erase all content and settings' from an iPhone 7. I selected this in the reset section of the settings. I was then informed that it had not completed uploading items to iCloud so I set it to reset after this completed, however it has not moved from 60%. I cannot seem to do anything as the only option to select is 'skip upload' and I am concerned that I will lose all the content that hasn't been uploaded yet if I select this.

How do i get this to complete uploading to iCloud or at least safely change screens?