Text Selection, "Select All" Text Difficult and Limited on iOS

I'm quite frustrated at how difficult it is to select text on iOS. There needs to be a "select all" for all text on the screen. I think there used to be such a function which has disappeared.

Also, If you select a word and want to extend the selection several paragraphs down the page, it's an EXTREMELY tedious process. You need to drag the blue zone (hard to pull the blue little extender line) then scroll, then drag, again, and again, and again.

Come on, Apple, you can do much better than this. You're Apple!