Thats not an unhealthy weight for your height. But to lose you should lower your calorie intake daily, eat every few hours, veggies and lean meats. Ditch soda and energy drinks. If your not workong out or exercising you will need to. Working out routinely will boost your metabolism. And of course get your cardio in.
Start a regular physical exercise program and stick to it without postponing. Ensure you also eat a lot of fats found in nuts and foods rich in fiber such as vegetables, fruits and salads. Eat more frequently but smaller portions of food. http://www.ehow.com/how_4622_lose-weight.html.