Good choice on the drinking.
As to losing again, Whitney said it - write down every crumb that passes your lips! You may be surprised. And change/increase or start exercising. Cardio is good, but adding resistance training (weights or belts) is better. Join a class - get a friend to go with you - whatever you can do to keep yourself motivated. Get the junk out of the house - stop eating out - you know what to do. Make a list and read it everymorning before getting out of bed - or tape it to the bathroom mirror.
They say these last 10 are harder than any before, but I'm sure you can do it if you are really motivated!!
