Omg. So have you ever been typing a word and it's wrong and you go back to correct it and it's wrong and you're like ffs I didn't press that key. But it's like you're somehow pressing it. Over and over again. You've tried to type a word seven time or more now and you're still like FUCK! I know I didn't press that button! I watched the big letter pop up as I pressed it. What the fuck. Fuck YOU!! Omg. Then you start to really slow down your finger work. And you still manage to press the wrong keys. You're about to give up now but finally finally you've keyed your word... AND ALSO NOW the wrong word is imprinted and burned into the memory of the keyboard FOREVER!!
i know i've had issues with a touch screen insisting that i'm touching a spot other than the spot i'm touching, but i don't think it was on a phone. i just can't remember what sort of screen it was. of course, i also don't have an iphone. i have one of those android phones that everyone says is worse than an iphone, before bitching endlessly about iphone problems that don't exist on androids. what i do have an issue with when phone typing, is when a word gets autocorrected to the wrong word, so i go back and try again, and it gets autocorrected to the same wrong word, and so on.
The worst thing about typing on an iphone is backtracking a few sentences; you can't place your cursor exactly where you want it no matter how hard you try. Then there's the autocorrect feature. When I sent a photo of a piece of furniture I built to a friend of mine, he said "looks good." and I tried to reply, "Thanks it's better in person." However, 'person' autocorrected to "prison," and he said "WTF? I knew you were gay!"
I often have typing problems with my iPhone 6S but it's just because I have big hands and the screen of the phone is small. I could buy a bigger phone but I like the 6s too much. It's a phone that made history. I could buy a newer iPhone, but they're too fucking expensive and a phone doesn't deserve so much money. When it comes to documents and data, these files can occupy a lot of memory in your device, that's why sometimes you need to remove them to make your phone run as fast as when was new. I won't guide you though out this process but you can find all the steps on https://osxtips.net/iphone-documents-and-data/. Good luck!