It was your birthday. At your birthday party. Your mom kept on bragging about your younger sister (3F). She had a pretty rough pregnancy with her, so she couldn't have any more children. When you saw the cake you noticed it looked like your sister's dream cake, not yours. It was placed in front of her and she blew out the candles. You were slightly annoyed by this. Next, she was given the bat for the pinata before you. Then the final straw. Literally half of the presents were for her all from your parents