How to (mis)understand the emotions of aging parents

Here comes a woman in her early thirties, maybe older. Caring for a family member - a senior citizen. It has many tasks in different fields and social spheres. She does what she can to manage everything, but there are only twenty-four hours in the day and sometimes she also has to eat and sleep. She is neither a centipede nor a "centipede", so she does not prosecute as she would like.

She is not a saint and she gets fed up with her "fast" sometimes. Still, it continues. No "thank you" is coming, but criticism is abundant. She inflicts it mostly on herself: "You have to be better, faster, smiling and you have to be perfect." Wrong. He doesn't have to.