Let's start off with the bottom line: perfectionism IS a disease. It is, in fact, a symptom of OCD.
We perfectionists are almost never happy, almost never satisfied. I mean, it can be very useful and a source of a Great Pride, when you manage to get it just right, with THE BEST Translation for example, THE most accurate description for a feeling, or a scene, THE best editing for a pic… THEN the satisfaction is Grand.
But, when it comes to everyday life… it IS an obsession.
Here, for example. I AM emphasizing each and every word in the Best way, to demonstrate my EXACT feeling and intonation for it. It is the way I do always write. I cannot just write a block of text, with no bold, italic, underline or CAPS in it; well, I can, of course, but it shall feel incomplete, till I'll go back and edit it, with the proper emphasis for each and every emphasized word.
This does also come into effect, of course, in using the properly EXACT grammar, choosing the EXACT word, and so and so and so on. On the whole, my Civilization is pretty ceremonial.
And, sadly, this causes me to, pretty often in fact, be nearly as judgmental and demanding towards others, as I am towards myself… although, believe you me: towards myself, I am always the harshest.