How do I delete large numbers of photos and videos from my iPhone 6S without deleting all of them? When I tried to backup my macbook air with the iPhone and sync everything, I tried deleting photos and videos from my actual phone. I don't want to keep thousands of them on the phone. But, when I delete some, they pop up again somewhere else. Sometimes I end up with multiple photos that are the exact same or copies. Sometimes when I try to delete some from my iPhone 6S, they totally disappear from the albums too.
I also have been trying to download or post photos of items I am selling on craigslist or Next-door. I can't figure out how to open and download the photos from those sites. Then sometimes, while trying to select a group of photos or videos to delete, there is no option to delete them. It only provides an option to forward them somehow, somewhere.
It's very complicated and frustrating to use this system. When I was using a Windows based computer, I could easily find and download photos to other sites when I was trying to sell something. It seems like I have no control over my photos and videos. When I want to delete, I can't. When I want to download them to another site like craigslist, I can't.
