Can someone help me please with grammar and proofreading Who is your favorite character in The Hunger Games? Why?

Can someone help me please with grammar and proofreading

Who is your favorite character in The Hunger Games? Why?

My favorite character in the Hunger Games is Rue. She is 11 years old the youngest on all the tributes games. She was from the district 11. As Katniss volunteered to keep her sister Primrose to participle on the game, she was the oldest on her family and did not have that chance. As a big sister she has the responsibility to look up for her sisters, gave them food from her ration, search about edible plants in meadows in an unpleasant district unlike the 12 0ne. Her life was not easy at all because she was older enough to sign up for tesserae so her family could have extra food.