Answer:
a peer mediator is someone who is your age and helps you solve a conflict between two people.
they would listen to both sides.
they would help you talk the conflict out
they would try to figure out if something deeper than what you're telling them was going on.
they would not get involved with the issue, they wouldn't pick sides.
they would have good emotional skills and not get angry if two people are having an argument, they would stay calm and find a way to deal with it.