YOU SAID:
school is so boring and not challenging
INTO JAPANESE
学校はとても退屈で挑戦的ではありません
BACK INTO ENGLISH
School is not so boring and challenging
INTO JAPANESE
学校はそれほど退屈で挑戦的ではありません
BACK INTO ENGLISH
School is not so boring and challenging
Come on, you can do better than that.