Changing your Diet
So you've committed to losing weight. Congratulations. Embracing change and challenge is hard, and your commitment to regain the healthier, fitter, slimmer you of younger years is to be commended. But at least 50%, if not more, of losing weight is committing to changing your eating habits. You already know the obvious changes to make: no soda pop, no sugar, low fat, smaller portions, more veggies and fruit, etc. But there are many other changes you'll need to make that you may not be educated about yet.
Consulting a nutritionist or dietician - at least in the beginning steps - can put you at a great advantage. He or she will be able to guide you not only on what to eat, but when to eat it, how much of it is acceptable to eat, how to make appropriate changes during your weight loss journey, and perhaps most importantly, when you're allowed to indulge.
What any good nutritionist will tell you is that it's incredibly important to keep track of your diet... and this means every single calorie! Using a website like this to monitor your foods - including portion sizes and all the nutritional information that goes with each food - will help keep you focused, on track, and will deter you from putting unapproved things in your mouth. It will also draw your attention to those "harmless bites" you pop on your mouth when you're cooking, or the glass of wine you have with dinner.