Here is the thing....any program you follow is a reduced calorie diet. Some focus on protein, some focus on eliminating carbs, some are meal replacement, some are prepackaged foods, etc. You know the drill. You've been here before.
Commercial diet plans shroud the calorie deficit in their product. J-Craig and N-system rely on their calorie-restricted packaged foods, plus some self-supplmenting with salads and the like. Other programs restrict certain foods while allowing free choice on others (think Atkins and the like). Slim Fast has its products and suggest using them 2X a day and having sensible snacks and dinner. WW is calorie counting, but that information is built into its points system. All perfectly doable, and there are so many more that remain nameless. The bottom line is, you will eat less and if you take it a step further, will move more (exercise).
What you need to do is pick a plan that you can stick to that interferes the least with the "normalcy" of your life.
If you're looking for a suggestion, I suggest calorie counting.
Find yourself a user friendly website, input your information (height, age, sex, weight, activity level) and find out at your current weight what the amount of calories daily is needed to maintain that weight. Then, you subtract 500 daily calories, and start your diet.
You know what "healthy" foods are, and you know what you like to eat. There are smarter "reduced calorie" choices that can be made as to milk products, yogurt, cheese, breads, meats, etc. The "magic" is in what you like to eat, healthy choices, and a daily calorie target (and ceiling).
You don't have to diet hard, you have to diet smart.
Also, you know it doesn't happen in a day, a week, a month. It is a lifestyle change, and there really isn't anything to be negative and doubtful about.
If I told you that a can of blue paint was going to color your walls blue, you'd believe me right? Its logical. That reducing 500 calories from your daily diet is going to cause you weight loss is the truth. Believe it.
This forum is full of people on diets of their choosing who are successful. I'm sure you'll get plenty of personal stories and advice. Decided what best fits into your life, and good luck to you.