How can I lock down my iPad to only allow the Notes app for use in class?

Hey everyone, I'm a student and I’m trying to turn my iPad into a completely distraction-free device that I can use just for taking notes in class. Basically, I want it to work like a simple digital notebook — kind of like a reMarkable or Supernote — but since I already have an iPad, I want to make the most of it without all the extra distractions.

What I’m trying to do is block everything on the iPad except for the built-in Notes app. I don’t want access to Safari, the App Store, games, YouTube, or any other apps. Ideally, I’d also like to block web browsing or online distractions. I want the iPad to do one thing and one thing only: take notes. If possible, I’d even like to disable installing or deleting apps, turn off notifications, and block Wi-Fi or Bluetooth if that’s doable.

The main problem is that I want this setup to be something I can’t easily undo. Most of the options I’ve seen (like Screen Time) rely on a passcode, but the truth is, if I set the passcode, I’ll probably just end up unlocking it whenever I get bored. So I’m hoping there’s a way to set this up where I literally can’t go back and change it — or at least something close to that. I’m open to using built-in settings, third-party apps, or any creative workarounds people have used to force their iPad into “single-purpose” mode.

Has anyone else done something like this? I’d really appreciate any ideas or detailed steps if you’ve managed to make your iPad a truly distraction-free device. Thanks in advance!