What they said! You aren't 'bad'. I do know, however, what you are feeling.
After researching all sorts of weight loss programs, I picked WW Flex because I 'can' have that pizza or pie as long as I eat it in moderation. This program isn't about denial, but about changing your views of food and what is healthy for you. I know that I am going to want that pizza favorite Mexican dish or chocolate bar, and with Flex I can. Because I can, I don't feel like I 'cheated', messed up, or am bad because I did. With other diets that I tried, I was 'bad' if I did that.
I had a difficult time my first week wrapping my mind around that, and everyone here helped me overcome that way of thinking. I was worried about drinking my coffee with my favorite creamer which would be 3 points.. lol
I think it was suite who posted something like, "Why are you worried? Work that favorite thing into your daily points and you will be ok!" You have your daily points and your FPs to use.. so if you want that pizza and or pie every now and then it is ok!
Just don't overdo - moderation is the key!