Taking CC Libraries from a student account to a personal account

there's no automated way to transfer your cc files.  from your previous account, you would download to your local computer and then with you new account, move the files to your local sync folder(s).

btw, subscription don't expire.  they automatically renew, so unless you canceled it, it still exists (and is generating charges).

Did you download all Creative Cloud assets to your computer before your subscription ended?

 

What happens to my files in the Creative Cloud if I cancel or downgrade my membership?

Your Creative Cloud files are stored on your desktop and the Creative Cloud servers. If you cancel or downgrade your paid membership, you still have access to all the files in the Creative Cloud folder on your computer and via the Creative Cloud website.

Your account will be downgraded to a free membership, which includes 2 GB of storage. If you’re using more than 2 GB of storage, you won't be able to upload new files to the cloud. To upload new files, delete files on the Creative Cloud server until the amount of storage you're using drops below 2 GB.

If you're over your storage limit, you have 30 days to reduce your online usage. After 30 days, you could lose access to some or all of your files saved on the Creative Cloud servers.

from here:

https://helpx.adobe.com/creative-cloud/faq.html#storeNServe