Thanks @StreetcarBlanche.

I gave up for a bit because someone I went to for advice said I didn't have a case, but I started wondering if they were lying to me because I had the feeling they thought I was the crazy one.

The problem is that my sister acts like social butterfly, posting tons of narcissistic photos at angles that only show a clean bit of wall or a small part of the yard. And people tend to think I'm neurotic and nervous because during the years I was more social, I was having nervous breakdowns from getting regularly attacked by my sister and our stepfather (he favored her) so I don't have confidence that people will believe me.

When I confronted her about hitting my glasses once (she shoved her arm in my face and knocked me aside to get to the fridge) she said I always exaggerated, but I told her yesterday she could get jail time for that under state law. Still, it would be my word against hers.

I did look up the county mental health website yesterday and I emailed someone to ask if there was free mental healthcare available near where I live. I told them the mess is so bad that I panic when people knock on the door and I'm afraid to call 911 during emergencies because I'm anxious about people seeing the mess.

If things don't get better, I might have to call someone in even if I'm scared of people seeing the mess. And when I tell relatives, they brush me off as if I'm negative and complain too much.