No.

In your situation, I'd just walk away from it for a week or so, play an alternate or abridged form and come back refreshed for another attempt in a fresh frame of mind giving the "why?" as applies to you and your physical fingering of it it some more thought and subsequent research in the interim. If it is a physical thing other than length/span, physio or finger gym for those fingers perhaps?

Right now that cloud of understandable "can't do" negativity surrounding open C has built up is a significant subliminal barrier.

Nothing wrong with using a 'crutch' in the interim if that is necessary to permit you to 'walk from A to B'. i.e. using instead the easy two finger 3rd fret barre form of Cmaj to play a progression involving C.