My advice.. eliminate sugary drinks. Biggest change for me in last three months? No alcohol. None. No sugar drinks or fruit juice. None. Unsweetened coffee, iced tea, water.. vitamins are from whole fruit and vegetables. I'm eating much less than I was - the last thing I want to do is lose out on real food because I was drinking calories instead of eating them.
The other thing that seems to have helped, is making sure I obtain a modest helping of fat (yes fat) in the morning. Every breakfast includes 1 oz of cheese or one egg. And that seems to have helped me with more modest lunches and dinners.
So far, so good - 22 lbs since end of May.. after years of being unable to put a dent in my weight.
And now, I'm in the habit. Clean eating, more chicken, fish, shellfish, more vegetables, and significantly less processed carbs. Small dinners are no longer "punishment" - they are pleasant experiences with many, many new recipes expanding my palate (loooove the shrimp tacos - try putting a few spicy shrimp on the bbq, then put in a couple of whole wheat tortillas with some diced tomatoes and shredded lettuce = yummmm.. and very low calories.
Best of luck!