I upgrade my account and now I can´t see my old files

Was there a gap in time between the school subscription expiring and the new subscription starting?

If more than 30 days:

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.

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

For anyone else reading this...
You should always have a local copy of all files, not just in the cloud
If you don't have space on your computer drive use an external drive for files
A USB flash drive to carry with you... 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/

are you using the same adobe id (= your school's email address)?

in the future, to find the best place to post your message, use the list here, https://community.adobe.com/

p.s. i don't think the adobe website, and forums in particular, are easy to navigate, so don't spend a lot of time searching that forum list. do your best and we'll move the post if it helps you get responses.

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