I'd like to travel around the world

"I'd like to travel around the world

Correct form:

Hi everybody, I'm Giada and I'm from Italy.

I love speaking in english and I would like to increase my skills. My biggest dream is to travel around the world, meet new people and visit new countries. Since I was a child I've wanted to learn languages because they will help me to realize my dream, so i've been studying hard to achieve my dreams and become the person I've always wanted to be.

Errors:

When say "Hi everybody I'm Giada" you've got to write a coma between "everybody and I'm" why? because it'll take another meaning if you don't write it.

On the following sentence "Since I was a child I've wanted to learn languages which chan help me to realise my dream" you've can put the "can" but it don't fit quite well in the sentence, from what i can understand about your text, i think it will be better if you write "because" instead of "which can" because you are giving an explanation about the thing you want to do, an other error in the sentence is the word "realise" because the correct way to write it is "realize".

On the following sentence "so now I'm studying hard to achieve my dreams and become the person I've ever always wanted to be." there are a few mistakes, i going to write the correct answer and after that i'm going to highlight the mistakes you made.

The correct form of writing it is:

", so i have been studying hard to achieve my dreams and become the person i've always wanted to be."

You have to write "have been" to tell the person you've been "doing something"  and will continue to doing it. 

If you have any question just ask, i can help with english and spanish...:D