Как перевести на английский это предложение: Мне ... лет.

I am 15 years old.

Sandy: Good morning, Kate. How are you? I want to see you.

Kate: Good morning, Sandy. I am fine, thank you and you? Yes, I want to see you too.

Sandy: I am fine too. Thank you. I want to know about your yesterday`s interview. How was it? Did they ask you many questions? And what did they ask you?

Kate: The interview was great. Yes, Kate they asked me many questions like " What is your name? What do you do? How old are you?" When I said " I am 15 years old" they did not believe me, as they said I looked like I was 12 years old.