Pause subscription

You should always have a local copy of all files, including account information
Make a text file with your account information and copy it + files to an external device
If you don't have space on your computer drive use an external drive for files
A USB flash drive to keep in a safe place... here are 2, there are many more available
PNY brand https://www.amazon.com/PNY-512GB-Turbo-Attach%C3%A9-Flash/dp/B0BF5VHLBZ
SanDisk https://www.amazon.com/SanDisk-512GB-Ultra-Flash-Drive/dp/B083ZLJ5MG
Other flash drives are 1 or even 2 Terabytes
Formatting a flash drive https://www.usbmemorydirect.com/blog/flash-drive-format-types/

See here:
https://helpx.adobe.com/manage-account/using/creative-cloud-subscription-terms.html
and here:
https://helpx.adobe.com/manage-account/using/cancel-subscription.html

no, pausing isn't possible.  canceling may cause problems* if you leave files with adobe. ie, you should have a local copy of them all (whether canceling or not).

* What happens to my existing files?
You can continue to access your Creative Cloud files on your computer and the Creative Cloud website, subject to a 2-GB cloud storage limit. If you’re over the 2-GB cloud storage limit when you cancel, you have 30 days to move files out of cloud storage.