Actually what is your height? u didnt mention. Cuz if someone weighs 34 kg and is 14 years old, they gotta be thin. My height is 5 foot 3 and i weight 51! and thats a healthy weight! So first of all you have to have confidence in yourself! my advise is that you should eat at least 5 portions of fruits and vegetables.That s one thing. The second thing is that you should eat special k or fitness cornflakes some mornings and nights. If you can. Try to change your food so your stomach wont get bored. For example eat cornflakes in the morning and at dinner eat a salad. Dinner should be eaten before 7:00 pm! After that time you should eat nothing but water. Cancel any chocolates. Cancel any soft drinks! Not even once a month. Any junk food should not be eaten. You should at least exercise everyday, walking, running, jogging, yoga, anything that suits you. You should not be taking any pills whatsoever. Before you eat anything check its calories and carbohydrates. If they are a lot i suggest you don t eat it. Keep eating and exercising they way i told you and believe me you will lose alot of weight. Also one more thing. Before you Start your diet and exercises weight yourself and take your body measurements and write them down on a piece of paper and after 10 days weight yourself again and take your body measurements again. You should compare them with the last 10 days and see the differences. You will see how many inches you lost from your stomach, butt, thigh, etc. Remember take your measurements every 10 days until you get the perfect body size you wanted!
go on a diet and thanks for the two points