What did Jeff Kinney keep in his journal?

Jeff Kinney, the author of the Diary of a Wimpy Kid series, wrote about everything in his journal, from the details of his everyday life to his most intimate thoughts and feelings. He often used the journal to vent about his frustrations and annoyances, such as his struggles with school and his relationships with his friends and family. He also used it to jot down ideas and sketches for his books, as well as to plan out his future career.