Disappointed and Mad as H#ll

I'm checking in to say that I am doing well following my plan. I am 11 days into it. I have gained 0.5 lb. I don't know why. I don't feel like I am overeating at all so I don't understand. I DO feel very stressed. I can almost feel the cortisol running through my body! OK, so that is an exageration but that is sort of how I feel. Basically I am VERY disappointed that I have not lost anything so far. I feel like SCREAMING becasue I am SO mad that I haven't lost. I need to focus on going to bed early and getting enough sleep.