Hi Rita,

I will outline the changes in colour, so you can see what I have changed. If you need an explanation for any of these corrections, please write to me personally. :)

Hello everybody,

I'm 60, my name is Rita. I live in Cagliari. Cagliari is the biggest city of Sardinia, a beautiful island in the middle of the Mediterranean Sea. I want to learn English; I spend a lot of time at it but it's so hard for me. I have some trouble (in the) speaking because I haven't occasion to speak English in my country, but writing is hard as well. I work in the public administration of my country as an Architect and I (occupy about) work on territorial and landscape planning. At the moment, I'm in my office and I'm starting to work.
I look forword to seeing if my writing is so bad or not.
Thanks very much everybody.

Your writing is quite good, actually. Please take every opportunity of writing and speaking. This site is a great place to do this, and you can talk with people via Skype also. :)