Forget about the 70 thing. We're going to have to ignore that, since the room is already as bright as you can make it.
The screen MUST match the prints.
The screen's brightness MUST match the prints. This is not negotiable. If the room brightness can't go any brighter, then the screen's brightness needs to come down.
Definitely go lower. As low as it takes to get a print match. Some people literally have to have their screen's brightness setting on 0 (although that is rare of course).
Bummer. Yeah, try the 5663 one.
If that doesn't work, you'll need to go exploring in the Keyboard Shortcuts (in the Edit menu on a PC, not sure about a Mac) and see if you can figure out the problem there.
If THAT doesn't work, you'll need to reset Photoshop's preferences entirely.
It had the info for the new sliders three years ago when you were still in the class!!! I'm sad that you didn't take advantage of it at the time.
Are you sure the light in your room is ok? https://www.damiensymonds.net/2012/01/light-around-your-computer.html
Badly
Look, whatever. You keep going with your dodgy raw processing using out-of-date sliders, and use this Channel Mixer layer for the moire:
Red 0, +105, +15, +10
Green 0, +90, +10, 0
Blue 0, +90, +10, 0
Oh, I used to have an XP-Pen brand one!
Yep, this is perfect. As a starter device, anyway. You should definitely try it out.
Remember what I said in my article - don't expect to love it straight away. In fact, there's a 50-50 chance that you'll utterly hate it straight away. But give it a couple of weeks, and you'll grow to love it.