Is it permissible to repent from watching songs or bad TV series, but not other sins?

A Muslim must immediately repent from all sins and transgressions, because the time of death is unknown, as Allah Almighty says: "And turn to Allah in repentance, all of you, O believers, that you might succeed." Therefore, repentance is obligatory for listening to music that includes musical instruments and watching TV series that contain violations of Islamic law. If a Muslim repents from some of them and persists in others, his repentance for what he repented from is valid, and he is sinful for what he did not repent from.