Hello LifeChanger: I see this is your first post here on PC. Welcome to Psych Central. I don't have any particular suggestions for cutting off toxic people. However here are links to 6 articles, from Psych Central's archives, that talk about how to deal with toxic or difficult people:

What's a Toxic Person & How Do You Deal With One?

How to Deal with Difficult or Toxic People

It's Okay to Cut Ties with Toxic Family Members

Toxic People: You Don't Need Permission to Walk Away

How to Set Boundaries with Toxic People

https://psychcentral.com/blog/6-diff...eal-with-them/

I hope you find PC to be of benefit.