What can I do if my siblings promised that they would support me being the full-time caregiver of their mother but they don’t help?

Libby, no you are not alone, by any means. I feel for you....you have a lot of reasons to feel burned out and I understand. I "get" the part too about your mother being on her best behavior when your siblings come for the weekend, and then once they're gone, you get a different Mom. I have been through that with my father. He saves his very worst behavior for me, when I am alone with him. So it is no use to look for sympathy from my relatives, because they have never seen the "Mr. Hyde" side of my father. That is why I come here to agingcare. People here get it and they give plenty of support and sympathy. Then I can go to my father and give him better care and attention because I have been strengthened by this site. I hope that you find the same "strengthening effect" by coming here. I would say to you to really try to find any time you can to nurture yourself. Set whatever limits are possible in your situation (limits on your mother, that is) to carve out at least some time for you, and get whatever rest is possible. And if you are quite depressed and it isn't going away, you can talk to you doctor about it. He/she can be a big source of support for you, and might even suggest some medication. I don't mean to be a drug -pusher, but sometimes medication really works, and often it's only for a temporary period. Good luck.

Thanks Theresa....It means a lot to me to know I am not alone.

Hi Libby,
I 'm sorry you are going thru this, I do know how you feel. My mom has been with us for 5 1/2 years. She has alzheimers & dimentia. It has been difficult and I too feel as they say 'damned if you do and damned if you don't'. It is a heavy load to bear daily.
My mom did the same thing with her medication.Mom's doctor told me to have mom take her pills in front of me so I could see her taking them and I also took the medication out of mom's room since she could no longer remember if she had taken a pill or not. Yes, mom fought it in the begining, but I told her it's doctors orders. Maybe you could try that. Hang in there, you are not alone, I will pray for you! Theresa <3