What should the questioner do with her son who listens to foreign music and rebels against her?

It is recommended to frequently supplicate for one's children, asking for their guidance and well-being, as this is a great means to attain good, in accordance with His (the Almighty's) saying: "And your Lord said: 'Call upon Me; I will respond to you,'" and His saying: "Say, 'My Lord would not care for you if not for your supplication.'" Furthermore, words must align with actions for advice to be more effective. Children should also be continually advised, with a variety of advisory methods and gentleness, taking into consideration their ages, so that each child is advised in a manner suitable for them.