Does the failure to stop pornography after numerous attempts constitute a false repentance, and is there a defect in a prayer that does not prevent indecency?

The previous repentance is not invalidated by returning to the sin; it remains valid if it fulfilled its conditions of regret, abstention, and resolve. However, one must repent for the sin to which they returned. Furthermore, prayer that does not deter from indecency indicates a defect in its performance and a shortcoming in fulfilling its rights, because a sound prayer deters from indecency and evil.