I am the same height as you, and I used to weigh the same. So far, I've lost 7 pounds in 1 1/2 weeks. You can do it! Drink a lot of water! If you find yourself snacking on unhealthy foods, like I did, try to find a healthy food to snack on. I would talk to your parents too. They can be a big help! My mom hasn't bought any cookies/chips for over a month now, so when I go into the cupboards, there is nothing "good" to eat, except for fruits and veggies. Good luck!