You are not fat! Some people are cruel or unkind because they are not happy with themselves. Please don't let them make you miserable.
You are very young & nicely tall already.
As you are still growing & will probably end up being about 1.75 tall which is brilliant height.My niece is about that height & she is gorgeous.
Some girls develop early some later and that is fine.
It is good habit to find sport that you enjoy & do that on regular basis. This will tone you up & you will feel better too as you will have more energy & you will feel happy inside.
Try eating some fish,lean meat stir fried with veg, steamed veg, nuts and fruit. Have 3 meals a day & 2 small snacks(piece of fruit or few nuts).
I got to 1.68 at 17 and I weigh 65 kg, I exercise & eat well & look really well as result.
Good Luck & Be happy & kind to yourself
No-one here knows that metric crapola.
Just did the maths thats:
Weight 9st 12.5 lb
Almost 5ft 6in
You're quite a big girl for your age. Sounds like you have some "puppy fat". You'll grow out of it. Just make sure you get plenty of exercise and you'll turn out fine.
everyone calls me a space cadet for living my life like an oddball.
But I don't listen to them.
I do what I want, when I want and I'm happy because of it.
I suggest you do the same.