Bless your heart. You are living in an awful situation. I couldn’t imagine having to live with animal feces all over as a common occurrence and the toxic relationship between two adult sisters living together.

Why are you stuck with her? You’ve also mentioned she controls all your income. I’d rather cut my losses, assuming you will lose your financial interest in the house if that’s the case, go to a shelter or a friend if you can. Get on your own feet and get out.

I’m in a toxic marriage that also has many positives. But you are not legally bound to a sister. Why stay?