Simplify the following text for a Grade 10 native English-speaking person.
Original: In a heated Tribal Council , Janu revealed that she was fed up with the others and the game so she decided to `` throw a wrench '' to the probable plan of voting out Stephenie and voluntarily left the competition .
Simplified: At Tribal Council , Janu said that she was fed up with the others and the game so she decided to `` throw a wrench '' to the possible plan of voting out Stephenie and she quit the game .