i don't think so hun. if you don't allow enough for the evening it's a lot easier to fall off the wagon. i always leave about 500-600 cals for my evenings coz i know that's when i'm more likely to pick - ahile watching tv etc. i've just spent a month staying at the same weight and it's reaaaally frustrating. i think it's just one of those things. you just have to push through it and try not to focus on it too much. i think now as much as ever is the time when you should be only weighing once a week. doing it every day is making you worry!
push through it hun, i've just come out the other side of a plateau, and i know it's hard, but i think it's the only way - keep doing as youre doing and you're bound to lose sooner or later!
good luck and we're here