I know exactly how you feel. I have been in a sugar trap for many years, probably since i was about 13, even though I really did not develop a weight problem until my 20s. It is a physical and psychological addiction and it is usually inherited. It is not your fault. I am reading a book called
"Why Can't I Stop Eating?" by Debbie Danowski and Pedro Lazaro, M.D.
It is helping me understand what is going on with me and for the first time I have at least some direction as to why I am doing what I am doing. I have done very well the last few days with very few carbs and I am feeling a tremendous lift from it.
However, the book cautions you that since this is an addiction, you will go through withdrawals, physical and emotional, including cravings, anger, depression, etc. It is just like withdrawing from a drug. To us carbohydrate/sugar addicts, sugar is to our bodies just like alcohol is to an alcholic, minus the fermentation. And even though it doesn't make us drunk, it does affect our brains, causing depression and sometimes anxiety.
Please consider looking for this book. I found it in the addiction section, not the diet section. It is hard to admit you have an "addiction." It was for me. So you are already ahead of the game by recognizing that.
I too had lots of days that I intended to go low carb and did not succeed. What is helping me is a shake called KetoSlim and adding flax oil to that, eating nuts, and using Stevia to sweeten my tea. I am also allowing myself one large caffeine-free diet coke a day which I plan to eventually give up because I hate using artificial sweeteners. Give yourself a break. Sometimes if you have been heavily dependent on carbs, your body is not equipped - physically - to handle an almost total drop of carbs all of a sudden. Eat vegetables, like green beans, tomatoes, artichokes, non-starchy stuff, and give yourself some treats. This is also unorthodox as far as the Atkin's plan goes, but if you must have carbs, there is a cereal called Uncle Sams that has 10 grams of fiber per serving. A small amount of that in the beginning of your transition to a low carb diet is, in my opinion, not Atkin's, a good idea. I am just going by personal experience.
I hope you will stay motivated and try some of the things I have suggested. I am also really being helped by eating nuts and using flax oil once a day. Please don't give up - just try to find what works for you and your body and give your body what it needs to be healthy and feel good!