Connie, you just have to commit to one day at a time. Just try to get through one complete day on program. If you are on the Atkins plan, allow yourself as much OP food as you can take. I mean absolutely STUFF yourself with protein/fat. Every time you're tempted to have a high carb treat, dive head first into a deli roasted chicken or slices of leftover roast. Roll slices of meat around full fat cream cheese. Make sure you have your bowl of salad with lunch and dinner and don't allow yourself to get hungry. You are doing it for YOU and you are the one who has to set your own limits. We can't come there and snatch the PB & J sandwich out of your mouth.
Once you make it through a full day OP, you will feel so proud that you will want to get through a second day. Success builds on success. By the time you get through the first week, you will be feeling cleansed and have fewer cravings for high carb foods. By the time you've survived a month, you will be amazed that you are no longer thinking about food all the time and might even occasionally forget to have a meal.
You'll get all the encouragement you could ever need right here but we can't do it for you.