What should I do when my mother is not convinced by my opinion, which I believe is correct, and describes me as "stubborn as a rock"?

It is recommended for a Muslim to abandon argumentation and concede, especially if they are in the right, based on the Prophet's saying: "I guarantee a house in the outskirts of Paradise for whoever abandons arguing, even if he is in the right." This ruling is further emphasized and becomes obligatory if the argument is between a son and one of his parents, because Allah has commanded obedience and kindness towards them, and has forbidden harming them. Therefore, the son must respect his mother and obey her in what is good, as long as she does not command something that contradicts Allah's command.