Hello, Tearbear. I'm so sorry that you're going through this hard time.
I think a good place to start is with a call to your local Alzheimer's Association. You can make an appointment with someone to discuss what's going on, and they can help point you in the right direction. They also have support groups that can make a huge difference for someone in your position. Just knowing that other people have gone or are going through the same kinds of things you are can help you feel a lot less alone.
You should not feel that you have to give up your life and care for your mother in your home. As Lindajane said about her mother, the symptoms may still be there if your mother is in a facility, but she'll be cared for by experienced people who know how to handle people in your mother's condition.
Most Alzheimer's patients actually do better in the structure of a facility, once they get over the difficult transition of moving to a strange place. They have enjoyable activities, and are surrounded by people like them. An Alzheimer's case manager told me that one of the best things about being in a facility with other people who have Alzheimer's is that the patients don't feel the frustration and pressure to live up to their families' expectations -- they can relax more when they're around people like them.
It always makes me so sad to hear that people feel guilty for placing their Alzheimer's patients in a facility. Usually by that point, the caregiver has spent at least a few stressful years trying to manage alone, and it's just not possible to keep doing it indefinitely. The caregivers often get so worn down that they end up with serious physical problems of their own -- not to mention the mental and emotional toll -- and that doesn't do anyone any good.
There's another poster here, Dave, whose father is in an assisted living facility, and he has been very happy there.
You've obviously done as much for your mother as you possibly could, and you shouldn't feel guilty for handing over the day-to-day responsibility to professionals. It will probably be better for her in the long run, and will definitely be better for you. You can still oversee her care, and make sure she gets what she needs -- it's not like you're just abandoning her.
I hope you'll continue to let us know how things are going.
Best wishes-
Carol