Trouble with 16 GB iPhone storage?

I have an iPhone 6 s with 16 GB storage. However I recently just cleaned off 900 pics (backed them up on my computer finally) and started taking photos and videos on my vacation. Suddenly it's giving storage warnings left and right. I don't have that much. A few random apps, 200 songs, 3 pics and about 10 minutes of video. I don't see how this is happening. What can I do to fix this?!

Got my iphone 6 plus screen replaced?

So i jut got my screen replaced as it was completely smashed! I did notice a few minutes ago that two kind of lines appear when my screen is open and i mostly see it when i'm lookin at black photos… My iphone is bent a little at the top left corner does that effect what is happening?

How to get pictures off of a water damaged iPhone? (32GB, can't connect to computer)?

I damaged my phone a few weeks ago so I took it to a shop to get fixed. They told me that it's permanently damaged and won't turn on completely. I Can't CONNECT TO VIA USB. So there's no way in me connecting it to a computer to retrieve the photos. I have over 3,000 pictures on the phone so iCloud is not enough. Is there anyway I can get the pictures transferred to my computer? If I buy more iCloud space, will i get my photos? I don't mind spending money, I just need to figure out how to get my pictures without connecting it to the computer.

IPhone needs me to turn off Find My iPhone but Wi-Fi is disabled on the phone?

Basically I have this old iPhone that I want to reset in case we ever need another phone. But the Wi-Fi is disabled, so I put in an old backup of my iPhone to see if it would fix it, to no fix. So I decided that I would just reset it completely, but now it needs Find My iPhone to be turned off to do so. Well I can't turn it off because Wi-Fi doesn't work and it's not on our wireless account and doesn't have data.