I gained 40 pounds please help me to get in the track again

I went to the Dr the other day and have gained 20 pounds in the last year. I was so discusted with myself, I had told myself after surgery that I would never do this to myself again, and here I am. I had stopped weighing myself, journaling, excersising everything we are suppose to do. I thought the weight would just stay off because I had WLS, NOT. I started back to basics this week and guess what "the tool still work" if you work it. I have been writing down everything, walking everyday, and eating protein and veggies, and LOTS of water. I was down 3 pounds this morning and thats a good start for me.  The carbs are the culprit. It starts with just 1/2 potatoe or a couple crackers or chips or one peice of bread but before you know it your eating a whole sandwich. After surgery I never thought I would ever be able to eat as much as I can, my husband is amazed. He always says I remember when you couldnt even eat 1/2 cup of yogurt or cottage cheese.  To bad it doesnt stay that way. Everday is a struggle and we have all gained a little here and there, 20 or 40 pounds is better than 100, but we need to get it under control before it controls us again, good luck, Debra