My iPhone won't backup?

I'm got a new phone and I'm trying to back up my old phone but it keeps saying iPhone can't be backed up because there's not enough iCloud storage available

Are the Apple iPhone X cases worth it?

I just got the new iphone x and i need a case. I was thinking about getting the Apple silicone case in the colors red OR white. But I read a review on one of the cases saying she had the silicone case on her phone for a while, but when she took it off, the entire back screen was cracked. Although many people love the case and don't have any problems with it. The case is pretty expensive ($39.99) so I don't want to waste my money on something useless. So if any of you have an Apple silicone case, please share your reviews on it.

How can I recover a word document on iphone?

So, I was working on a file that I opened from my outlook email and suddenly I got out of the document to look at another one. When I came back all my work was gone, is there any way to recover it? I was using the Word app.

Using a Spring Iphone 8+ on At&t?

I have an iphone 8 plus, but it's on Sprint. I want to use it on At&t. Can I just swap sim cards? Or do I have to go to sprint and get it unlocked then swap sim cards?