Make sure you have a well-balanced diet, with the proper amounts of protein, carbohydrates, and fat. Don't set a target date for a holiday, when the temptation of high-calorie food and drinks may be too hard to resist. Drink a glass of water before your meals. Weigh yourself weekly. Chew sugarless gum when you want sweet foods.
Plan menus carefully, and count calories.
Have low-calorie foods on hand for nibbling. Choose foods that are both nutritious and low in calories. Take time for daily exercise, or join an organized exercise group.