<human>: Can you summarize the given text in a few sentences?

To start, we've had a difficult family life. We had an emotionally abusive home, where the the [now] abusive sister (let's call her A) got the brunt of the anger. She stood up until she was hammered down, while I learned to avoid the aggressor. The abusive stepfather is no longer in the picture.

Fast forward 15 years and she cannot form adult relationships. Her anger is unrelenting and easily provoked. She verbally attacks people if she feels threatened (and even the most mundane comments can threaten her). People often feel like they walk on eggshells around her because anything can set her off. My mom especially feels the pain because A is living at home. She hasn't been able to hold a job because of her emotional issues, and cannot financially support herself (because of meager pay and horrible spending habits).

I feel the pain whenever I visit, because she blows up at the slightest provocation and accuses my mother andme of conspiring to make her feel bad. She also takes advantage of vulnerabilities and control, like using the threat of abandoning you in a parking lot 40 miles from home.

I refuse to be alone with her now, but I don't know how to visit my family without her presence. My refusal to see her makes it worse (because we're all against her), and I can't have an adult relationship with her. We've tried to get her into counseling but that's become a trigger now. I'm just not sure what to do. Are we enabling her? Is there anything we can do to make it better? Help!
<bot>: Abusive sister, I feel like I walk on eggshells and I don't know how to make the situation better