CLR – Question on October daily thought downloads

Brooke, in the first week of the October homework, we’re doing thought downloads, and I have a question about Questions 5. It says “List some positive circumstances from your life (Do not repeat throughout the week).” I’m not sure what the do not repeat statement means. Also, we end with question 8 about listing negative thoughts I’ve had in my life. What is the purpose of ending this exercise with negative thoughts? I feel like it ends on the negative. I go back a read my responses to question 7 about positive thoughts to end it for me, but I didn’t know why we ended with the negative.