Hey there,
sounds like you are going through a tough time for sure. Sounds to me that your daughter's illness or other issues are causing her to have some serious lack of gratitude for all you have done for her. So sad. As for you, do you have a therapist, counselor or member of clergy that you can speak with to help you deal with the issues you are facing in regards to your daughters illness etc? I know that having someone who is not directly involved with a situation is very beneficial for me in dealing with my feelings and concerns. Perhaps this would help you as well.
Anyways, I am glad that you are staying sober through all this and I wish you only the best.