Answered
Hello, for some reason my user interface is to large
For some reason my user interface went from a good size to a almost unusuable size taking up almost half the screen
Is there any way to change it back? 
For some reason my user interface went from a good size to a almost unusuable size taking up almost half the screen
Is there any way to change it back? 
Sounds like your interface scaling has been set to 200%
Go to Preferences - Interface - and set UI Scaling to 100%
You will need to restart Photoshop to see the change
Dave
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