Is it enough to follow learning more Italian ?!

I really love Italy and I had ever been there few years ago, it's amazing !!!

Now, I'm planning to come back and I'd like to learn more the idiom

I noticed it's better when we know more the idiom, it's more easier

to go to restaurants, stores and so on...

These books, some I bought in Italy (Roma and Venice - my collection), 

and I also got the grammar, dictionary and dvd in a store in my city today.

Can anyone help me? 
If you know to write in Italian and want to practice it with me,
new friends are always welcome !!! 

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