She is in advanced stages of Alzheimer's and refused outside help until he ended up in the hospital. I've been helping him take care of her for 4 years. I lived at their house when he was hospitalized for heart and gallbladder for a week. Then another week after he got home and was recovering and on many medications. Since he has so many restrictions for lifting and moving, he finally accepted hospice for mother. That is going well, but I still spend between 8-12 hours at their house everyday. Plus, I am getting pretty fed up because they criticize and holler at me all day long. Changing diapers, cleaning, cooking, making appointments, answering phone, talking to home care nurse etc. I know that I am getting depressed over this and I am very tired. I need to set some boundaries. How do I do that?