Welcome to the forum. By the way, as you mention anorexia, it's my personal opinion (and of some others who author the relevant literature) that anorexia is a subtype of OCPD, with its unhealthy focus on perfectionism, among other similarities.
Has anyone had any success with minimizing self-criticism?
Well, I guess not. Change is hard. I realize it's a key to making OCPD better. I made up my own triad of OCPD -- "negative, critical, and pessimistic". To me, those are all very characteristic of OCPD. I'm good on the theory, but implementation is harder.
One thing that's crossed my mind is going through a day without criticizing anyone about anything. Easy enough to verify. Just listen to what I say. But I think my memory can be very short sometimes, even like 10 seconds long. I forget. Often holding thoughts in my mind are like trying to hold water in a cupped hand. They just quickly seep through my fingers.
I like the "no criticism day" idea. I might try that today, I'm going to take a walk with a neighbor later. I'll report back.
Keeping self-critical thoughts out of one's mind, well, that has to be more difficult, and more difficult to verify.
I hate to keep doing this, but at the moment there's are rather vibrant Facebook community of OCPDers discussing their issues, here:https://www.facebook.com/groups/ocpd.support
It's not visible to the public, and I don't have anything to do with running it, but you can apply to join and they'll accept everyone. Be careful about using your real name. One thing you can do for sure is to read the posts and get some good info. I wish this forum was as active but it's not. It has its purposes though.