Photoshop

Hello,
I have set Photoshop to automatically save my psd file in the cliud every 5 minutes. I would like to go back to an earlier version (from 1 hour ago). The internet says that I can do this via the Creative Cloud and my synchronized data. However, it only tells me that I don't have any synchronized files. Where and how exactly can I find an earlier version of my psd. file? Because obviously Photoshop must have saved it somehow.
Can anyone help me?

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