This is not a solution nor a trick but just a thing you can do, first turn on reachability (if you’re able to) It will help a lot since most of these people’s phone is only affected at the top. After you turn on reachability just swipe down from the bottom of the screen, you’ll be able to do most things because the top screen is being dropped down to the bottom. If you have a second device you or device you can borrow check if your apple device still has warranty or apple care, If you have either of these things you will be able to fix your phone for free! I suggest you go send your device to apple or go to your local apple store to see if they do their own repairs. If you don’t have any of these things you can still get your device fixed but you will have to pay a fee.