I suffered a lot from OCPD and it came to a point that I was so neurotic, compulsive and obsessive that my body started to get really sick.
What helped for me was a breathing exercise in the morning and evening. During the day I would expose myself by not doing the things my OCD wanted me to do and not think the things my OCD wanted to think and then be as mindfull as possible with the feeling that arised. With being mindfull I mean feel the emotion without condition and let go of the thoughts and behaviours behind it.
Took me about 6 months, still not fully recovered but I am not in a complete OCD fear state the whole day anymore and I feel pretty relaxed and good on an average.
Let me know if you want me to go in detail about how I did this and take care! And try to believe in the power of healing, OCD can feel so real but in the end it is just a mental interpretation of your accumulated grief, fear and anger and has nothing to do with what is really going on!