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I’m sorry to hear you're having trouble. I know that can be frustrating. Hopefully, we can get this resolved quickly
You somehow activated the Zoom feature of your iPhone. First, tap twice (double tap) on the screen with three fingers at the same time and it will turn off Zoom. If that didn't work, then hold down the Home/side button for a few seconds and it will bring Siri. Ask Siri to turn off Zoom.
If it still not working, then you need to turn off Zoom manually.
In Zoom mode, all the functions will work normally except that the screen is bigger and you need to swipe using 3 fingers to pan around or move the screen.
So move the screen with three fingers and enter the passcode (if needed). You will have to move the screen back and forth with three fingers to enter the passcode since all the numbers will not show on the same screen when the zoom is on.
Then go to Settings > Accessibility and turn off Zoom from there.
Please let me know if that didn't work, so I will continue to help you until we fix the problem
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