How to place the iPhone's cursor anywhere in a text message you're composing: https://www.youtube.com/watch?v=WhLGEJ3sMNg
I confess I had no idea this was possible until I googled it just now. This is going to make texting so much less frustrating.😎
Move your cursor with the keyboard — Apple Support

YouTube
@LindaNagata it often tries to guess where you’re trying to place the cursor - while less frustrating in general than trying to tap where you want the cursor to go, it has its own brand of irritation, too >_<