I am burned out caring for mom. Is there a lower cost facility for Mom?

I brought my Mom down 14 months ago. She is now 92. She lived alone and was having small strokes. She did not recognize the neighbor when he came to check on her. The Dr in her town said she could not live alone anymore and that she has Dementia. So I brought her into my home. She really isnt happy here. She is having a hard time adjusting to my house. Its colder here that at her house. Its hotter here that at her house. She doesnt know her way around here, and she cant drive cuz she would get lost. I try to tell her that driving is my job. She doesnt come out of her room much. She will eat a meal and then go back in to her room.She likes to watch her Game Shows on tv,and then fall asleep. She is so hard of hearing and I get so frustrated trying to yell at the top of my lungs so she can hear me over the TV. Now I just hit the MUTE button. . She cant get warm enought even though she has a little heater in her room and I bought an electric throw for her. Our electric bill has usually been quite high. She complains that her tea is "just barely warm" so off I trot to warm it up. Then it sits there and goes cold, so I have to trot off to warm it up again. Her food tastes drive me crazy. Her food has to be HOT. Everything is too spicy or too peppery, even though we all try to makes foods bland for her. One day she will eat pizza and like it and the next day its too spicy. She rarely will eat rice or pasta. I usually just open a can of soup for her and she will eat that. I cant even count how many meals she has refused to eat. If I were to ask her what she wants to eat, she will say "I dont care, just not too much. " I will make her half a sandwich and she will say "that is too much, I cant eat that ,just cut it in half." Just make me some soup... I feel like a waitress. Its is very hard on our budget. The Dr we were seeing perscribed an antidepressant and an acid blocker for her tummy. Mom doesnt like to take prescription drugs, she gets liturature from all over the world talking about natural cures. But to her, she can take whatever pill she buys over the counter as long as it doesnt come from the pharmacy. So last week she refused to take her medications, for the second time. She was wrapping them up in a napkin to hide them from me. Needless to say in the next few days her tummy started getting upset, she was burping and spitting up and she started crying and got depressed. Of course she doesnt see any of this. She is living more and more in her past and it isnt a pretty past. Her first husband was abusive to her, Her relatives owe her money. I try to change the subject but she still seems to have a need to talk about it. She is very bitter. I have heard it all many many times, I dont want to hear it anymore. I end up in tears and have to leave the room. My husband says that we are like oil and water, I do lose my patience a lot. Now I know why my husband never spends time in her room. I dont think that I can take much more, its only been one year.. I have been talking to people about large facilities and Board and Care homes. They are sooo expensive. How can I find one that fits our budget? Steph123