I would start out slow. I'm not someone who likes to be restricted. I like a TON of variety. I just try to chose the foods that I am craving most that day and stick to the calories that I am alloted. Don't try to overhaul everything at the beginning. It takes time to change old habits. I still can't kick my doughnut cravings, but I make those a part of my calories one day a week. I know that if I have a big ol' doughnut, then I won't have much left for the rest of the day, but that's still MY choice. that is the nice thing about calorie counting, you get to chose what you want to eat. Find a calorie counting site that works for you and maybe invest in a pocket book that lists calories for a variety of foods. Just go slow. It may take a while to get on track, but every little step is one closer to your goal.

hope that helps!