How can I cope with my manipulative mother?

I am doing my best, but sometimes I feel overwhelmed by guilt about not doing enough. Annalisa Barbieri advises a readerI am a woman in my 50s looking for advice on how to cope with my needy and manipulative mother, who is in her 80s. Physically, she is in really good shape: she is active, has a good social life, lives independently in a retirement property and drives a car. Her neighbours are lovely and she has settled in well, joining in with activities and helping others.Mentally, she is