Hey

I have been there, so desperate to lose weight I thought I could do ANYTHING to lose weight. I knew that if I reduced calories, I could lose some weight, so I always took it to extremes because I was so desperate to have the weight off me, immediately. So, I would eat extremely low calorie days, between 800-1000 calories.
And for a few days, it always worked. I would feel pure, fantastic, motivated, not hungry. Now that I've had some time to think about the body and how I would LIKE it to work if I were TRULY faced with a starvation experience (plane crash in the Andes, maybe?) it makes perfect sense that the body would respond (in the short term) to a radical reduction in calories with a boyant feeling of possibility and can-do-it-ness. In your body's case, it expected me to put that energy into FINDING FOOD. I mean, if you started starving and your body immediately lost all energy and started to shut down and you were depressed and lethargic, just how would you go about the WORK of finding food (like in the days before grocery stores and pizza delivery?)
So, I would drastically cut calories, have a couple of days of euphoria and then I would binge. And then I would cut back EVEN more to "make up" for the overeating and I would binge, and cut back and the cycle was horrifying and painful and I felt out of control and like a no will power loser. I didn't understand how OTHER PEOPLE could lose weight when I couldn't even stick to a "plan" for more than a few days.
This time, in July 2004 I looked back at my dieting history to try to figure out why I could lose weight in the short term, but why I could NEVER maintain a weight loss. A few times I hit a "goal" weight - lasted about a week.
I realized I wanted to "diet" in the short term - a quick, painful, hungry, miserable experience, Then "stop dieting" and eat normally. Normally. Wow, it took me 20 years to figure out that my "normal" way of eating made me fat. I couldn't diet and stop and eat normally, I had to diet and make that lifestyle my normal. That meant no more radical 800 calorie days, no more days of foods I hated and dreaded. I had to find healthy foods I liked and looked forward to eating. I concentrated on what TO eat and what NOT to eat.
I lost weight eating about 1400-1600 calories a day. I used a combination of calorie counting, eating whole foods (limiting processed foods, emphasis on vegetables, fruits, lean proteins, complex carbohydrates, healthy fats) and volumetrics (big portions of low cal foods to stay full and satisfied).
I have been maintaining my weight loss the exact same way (except I eat more calories of the same good foods each day and have a weekly treat meal in a restaurant).
Think hard about your goal - is your goal to lose weight? Or is your goal to lose weight and KEEP IT OFF.