Hey, SERENA !
Everyone is right. You can't look at this as a diet. Diets are short term fixes for a long term problem. If you want to take the weight off and keep it off, this must be a complete lifestyle change. The changes you're making to your healthy today, you keep for the rest of your life, not the amount of time it takes to lose the weight. Because what happens once you do lose all the weight ? Do you go back to your old eating habits ? If you do, you will regain all the weight.
If you want to take the weight off and keep the weight off, you must continue to eat right, watch your portions and get some regular exercise that includes some strength training. AND you don't have to give up foods you really like. Spark People has never been about deprivation. It's all about moderation and portion control. Yes, a cheeseburger, fries, beer, brownie, cookie, chocolate, etc... can all be a part of a healthy lifestyle as long as you are mindful of the portion.
So, what to do is try to reincorporate those healthy habits back into your daily life. Do you eat 6-9 servings of fresh fruit and veggies ? If not that's a great place to start making improvements. If eating 6-9 seems like eating too much, then start with 2-3 servings. Keep adding a serving each week until you are eating 6-9 servings of fresh fruit and veggies.
What are you doing for exercise ? Do you have a gym membership ? if so, pick a time you'd like to go and check out their class schedule. try a class. use the weight room. try the bikes or treadmills. Get your body moving.
What's Newton's First Law ? A body in motion tends to stay in motion.