Imagine you go on holiday. How would you present yourself to a foreigner?
Hi, my name is Julia. I am from Brazil. Nice to meet you.
Well done! Agree with previous corrector :)
Hello, my name is Julia. I am from Brazil and I am 21 (twenty-one) years old.
Nice to meet you!
Hello, my name's Julia. I'm from Brazil and I'm 21 years old.
Good work! Buen trabajo!