Tasha,
I am sorry to hear that this person’s family is not there to help you. Being a caregiver is a very hard job. Many people do not realize just how hard it can be. We as the caregivers want nothing more than to help our loved ones or friends to live a life of quality.
Depending on what the diagnosis is for your friend/neighbor there may be local support for them as well as you, in your area. You mention that she yells loudly at all hours and has been kicked out of hospitals, have you spoken to her healthcare providers about this behavior? You obviously care for this person and are worried about her and I would hope that her healthcare providers can see that and will help you find some answers to the issues you are having with her.
Being a caregiver myself, I have from time to time lost my patience with my loved one. It isn’t that we don’t want to care for them, it just can be very frustrating when we as the caregivers have tried many different approaches and none of them work.
Please know that you are not alone.
Pipboy