I've just come across this article in today's Guardian about a website for people with "horrid parents". The founders advise against going no contact with difficult/abusive parents because "that tends to make you feel very guilty. My advice would be to keep the relationship going if at all possible. When you’ve got a partner in your life, take that person with you when you visit your parents, because you need their support.”
They then recommend taking a bubble bath and focusing on "making yourself a better person" as strategies for coping 
I'm in a NC situation with an EA parent myself so found it triggering, would be interested to hear what others thought.
https://www.theguardian.com/lifeandstyle/2017/mar/11/horrid-parents-how-survive-them-alyson-corner-angela-levin