When you're struggling with food or battling your weight, it's easy to self-sabotage. With constant self-criticism, berating our bodies, and punishing ourselves for things we did/didn't do, we often become our own worst enemies. But the things we are telling ourselves (subconsciously or consciously) can do us more harm than good.
1. "I blew it" I used to say this all the time. I would have a plan for the day of what I "should" eat, and then if I deviated from it slightly (i.e., I had a cookie after lunch), I would say "shoot, I blew it, so I may as well eat 9240823 other cookies".