WEIGHT IS JUST A NUMBER. Muscle weighs more than fat. As you do strength exercises and tone your muscles you will be gaining pounds, but as you do cardio and burn fat you will look like you should be going down on the scale. It's okay if you go up!
Also, eat off of a salad plate, because your serving only needs to be as big as your fist. Eat small portions every 2 hours to keep your blood sugar stable.You need to work out for 40 mins. at least to lose weight (sweat). If you have a craving for something, only eat as much as you need to kill that craving. Plus don't consume sugar drinks.