Hi Ilenia! THis all sounds great, but I do have a few small corrections :)

Hello! 

I'm Ilenia, I'm twenty-five years old and actually I I actually live in Milan.
I was born in Catania, a beautiful city in the Sicily and after High School, I decided to move to Milan to broaden my cultural and personal horizons.
I have chosen to move to Milan because I think that Milan has an great energyenergy and international allure.
In Milan I studied law and last year I graduated in law.
Now, I have decided to find a job abroad because unfortunately today in Italy there aren't any employment opportunities.

My life

Hello!
I'm Ilenia, I'm twenty-five years old and actually I live in Milan.
I was born in Catania a beautiful city in the Sicily and after High School, I decided to move to Milan to broaden my cultural and personal horizons.
I have chosen to move to Milan because I think that Milan has an energy and international allure.
In Milan I studied law and last year I graduated in law.
Now, I decided to find a job abroad because unfortunately today in Italy there aren't any employment opportunities.

My life

Hello!
I'm Ilenia,  25 and living in Milan.
I was born in Catania a beautiful city in Sicily and after secondary school (UK English - high school is American/Canadian English ), I decided to move to Milan to broaden my horizons.
I chose to move to Milan because I think that Milan has an energy and international allure ( that other cities in Italy don't have?!)
In Milan I studied law and  I graduated last year
Now, I have decided to look for a job abroad because unfortunately in Italy  in these days there aren't (m)any (there are some !) employment opportunities.