First off, congrats on your 7Dm2. I have the same camera and it's fantastic, I love it.
First the bad news: If you are using PSE 10, than the most recent version of ACR you can put in there is V. 6.7. However, you need no less than ACR 8.7 to be able to see your 7Dm2 images.
You have three choices: one is to update to the latest version of PSE 2019 and you are good to. Your second option is to purchase the Photoshop/Lightroom Cloud subscription service. (To be honest, with a camera like that you really should consider this.). The 3rd option is to download the free Digital negative Converter (Adobe Digital Negative Converter ), convert your images to DNG images (from the CR2 format), and you are good to go with the version of PSE you have.
As far as costs, the 3rd option is the best, no money. For maintaining your software at a level your camera deserves, the Photoshop Cloud package, at $10/month, is the most expensive of the three but you'll get a LOT out of this. Updating your PSE is the safest insofar as you are used to using PSE but be aware that the ACR that you use in PSE has significantly fewer options and abilities compared to the one you get with the Cloud service.
I know that some are concerned or afraid of the DNG format, but I convert ALL of my images to that and have never looked back. For more information on this, see this article: https://photographyconcentrate.com/should-you-convert-dng/
So please let us know if this helps you in any way.
Really good advice. I went a slightly different route and had decided to update and go for the monthly subscription.
Ok Chris, Welcome to a whole bunch of new. I’m sure you will enjoy it all