The only way you're going to lose weight is to burn more calories than you take in. There's no other way. You can count your carbs and all that jazz but until you actually make your mind up that you want to lose weight and are willing to do what you need to do, counting all the carbs and calories in the world won't help you. You have to exercise and watch what you eat.
A couple of years I lost a lot, and I do mean a lot, of weight by simply watching what I ate and walking with Leslie Sansone. I didn't count a single calorie or carb or measure out how much of what I was eating (i.e. a cup of this, a half-cup of that, etc.). Two days a week I had whatever I wanted to eat/drink and as much as I wanted of it. Five days a week I watched what I ate and drank only water and tea. I stopped eating bread, sugar and cut down drastically on my salt. I stopped drinking soda of any kind (yes, even diet soda WILL make you gain weight--it's worse for you, actually, than the regular soda). I never limited myself or punished myself for having a bad day. If I wanted a cookie, I had it. It was better for me to have that 1 cookie than deprive myself and then go wild with the cookies later. My problem is I'm a stress eater so it was really difficult for me to get my mind where it needed to be to not turn to food when I was upset or stressed.
Every single day of the week I walked. I started with 1 mile a day and worked my way up to 5+ miles a day. I didn't miss my walking for anything unless it was absolutely necessary. Over the course of 18 months, I lost an incredible amount of weight.
The past couple of years have been a little rough and some health issues have caused me a lot of problems, including causing me to gain a little of my weight back because I haven't been able to exercise like I want. As I'm getting my health back on track, I'm slowly working my way back into my old routine. Between watching my diet (but never restricting or limiting myself) and walking with Leslie, I have complete confidence I'll be back where I started in no time.
It all comes down to something has to motivate you. You have to want it bad enough to be able to stick with it and not give in to what may make you overeat. And, never, never punish yourself because you have a bad day. Everyone has a day like that. You just pick up and start over again the next day and tell yourself "that's OK, it wasn't the end of the world, I'll still meet my goals".