Instead of the goal of losing weight, I would recommend focusing on being healthy.
What use is it to be thin if you are not any more healthy? Unless, of course, you are a teenage girl. Actually, especially if you are a teenage girl (who are unfortunately also the target of the tobacco industry).
If you are healthy, you will be physically fit. You will look and feel much better.
To accomplish this, you do not necessarily have to eat less, but eat more healthy.
Eat more fruits, vegetables, and whole grains - and less sugar, trans fats, and processed and refined foods. Also, get some regular exercise.
Healthy foods taste better anyway. This (pictured) Original Tomato Greek Salad Wrap, that I occasionally have for lunch, is delicious and very healthy.
Here are some more tips on becoming more healthy.