Some parts of my iPad screen are upside down

Thanks for the screenshot; a picture is worth a thousand words 🙂

I have seen something similar once before. Try a forced-restart of your iPad - as this will often clear an isolated software issue:

Force restart iPad (models with Face ID or with Touch ID in the top button)

If your iPad doesn’t have the Home button, do the following:

1. Press and quickly release the volume button nearest to the top button.
2. Press and quickly release the volume button farthest from the top button.
3. Press and hold the top button.
4. When the Apple logo appears, release the top button.

Force restart iPad (models with the Home button)

Press and hold the top button and the Home button at the same time. When the Apple logo appears, release both buttons.

Can you provide a screenshot?

Take a screenshot on your iPad - Apple Support

You can upload your screenshot (redacted if necessary to remove personal or sensitive information - using markup tools) with the image button at the bottom of the message editing window:

The next step is to reset iPad settings. No data will be lost:

Settings > General > Transfer or Reset iPad > Reset > Reset All Settings

You’re very welcome. Sometimes you just have to work through a number of increasingly invasive steps.