Mood: The mood of the video appears to be melancholic and introspective, with a sense of longing or nostalgia. The young boy's facial expression suggests that he may be experiencing some kind of emotional distress or struggle. The theme of the video could be related to childhood, growing up, or overcoming challenges.

Environment: The environment or setting of the video seems to be a school or educational setting, given the boy's uniform and backpack. However, the focus is on the boy's emotional state rather than the physical environment.