I totally agree 100 percent with MTD.

Your mother is 82 and half the things she does she probably does not realize she is hurting you. My mom was the same way. In fact on her death bed she said i was a pain in the a++ . Go figure. Hey you need to take care of yourself, get out and stop feeling sorry for other people even if it is your mother. DO the best you can for her and that is all you can do. ANd the best thing you can do right now is move out. She sounds like she can do good on her own. If you stay you will go out of your mind. Maybe you all could sell the house and move into a duplex where she can be next to you but not in the same house. But the bottom line is you should not feel guilty about anything. Your mother loves you...She just does not know how to express that. Its just the way they are back in the day. I went through the same thing with my mom. But she has passed on years ago and i just think of the good times we had and I forget the bad....