Have you lost weight in the past only to regain it a short time later? Have you followed every diet including Atkins, South Beach, the Drinking Man's diet, the Peanut Butter diet, or even the Chocolate Diet? All of these diets work, and none of them work, meaning you can and probably do lose weight on any of them, but you won't keep it off. Why not? Because the day will come when the diet is over and you're right back to your regular routine; the same routine that got you fat in the first place.
In the past diets carried a warning not to stay on them longer than the prescribed period; usually two weeks, some a mere three days. Today's popular diets are attempting to style themselves as lifestyle choices, but this isn't working either. People want to be able to eat a sandwich now and then. They want the burger and the bun! Strive for balance choosing foods you prefer, and you'll have a better chance at lasting weight loss success.
Small Changes: Big Answer to Weight Loss Blues
Start today, and work one day at a time making one or two small changes such as switching to the calorie-free soft drinks then weaning yourself down to two or less a day (if you drink more than that now of course). Changes don't have to be drastic. In fact trying to make drastic changes in your lifestyle never works because while you may be happy in the beginning, you slowly grow miserable toward the end. In fact, that's the problem right there: you anticipate an end.
Weight Loss Comes Down to Choices
Talk to people who've lost weight and kept it off. They'll say, "This is a lifestyle." It's about choices you make every day. Are you choosing to take an extra helping, even though you're comfortably full? Change that one behavior and you're on your way. Do you choose to take the bag of chips to the couch? Change that, in fact just stop eating on the couch entirely and you're one step closer. Eliminate the habit of grabbing a few bites on your way past the candy dish, that alone can shave several pounds. I once lost eight pounds simply by eliminating the candy dish I kept at my desk (not to mention the money I saved not buying a couple pounds of candy a week).
Choose one small habit or behavior at a time, not your entire existence, and you'll have a much better chance to reach your weight loss goals.