First I say, begin again. Make the book "just the facts" book. Write down the truth...the facts.... no comments about how bad you were, or that you cheated or that you shouldn't have had this and that... NO JUDGMENT! No blaming.

The book contains just facts that you are gathering to use to figure out what you need to add or decrease later on. But don't do any assessment till the end of one or two weeks.

Write down everything... and when. No judgment now! It's just a fact book, like if someone else were taking the notes. Approach it from that perspective and I think it will help. (Getting the info will allow you to realize that maybe you are allowed some of those fun foods, you might "just" need to add more healthy ones. ) good wishes.