making space in my memory supply

Creative Cloud storage is NOT a replacement for ample Hard Disk space.   Whatever is saved to your local Creative Cloud Files folder is synced to your cloud storage. 

1. you have to be careful of anything that's adobe related and not created by you, or you're likely to cause problems with the functioning of adobe apps or the adobe cc desktop app itself.

2. you shouldn't depend on adobe cc storage as backup for anything important.  it's there for convenient sharing with yourself on other devices and with others people (esp, collaborators).

3. you can safely (ie, you won't cause problems with adobe apps) delete anything you've created and that you've backed-up elsewhere (eg, external hard drive).