Why do I feel a sense of failure towards my deceased grandmother despite my care for her, and am I truly failing?

We advise the questioner to thank Allah for enabling her to show kindness to her grandmother and to continue being dutiful to her parents. There is no harm in a person feeling that they have fallen short in doing what ought to have been done, and similarly, there is no harm in crying, provided it is not accompanied by resentment of divine decree or by wailing and raising one's voice. However, she must be aware that anything that deviates from the ordinary becomes blameworthy. She should divert her mind from dwelling on the matter and increase her supplications for her grandmother and give charity on her behalf if she deems it appropriate.