As translators, we are not supposed to work into our second language, only from it. However, we have to write in a foreign language when we live and work in a foreign country: We need to be able to write it well to correspond with our customers and colleagues, to give classes and presentations, to write resumes and applications. If we want to communicate more broadly, we may decide that a more widespread language (like English) opens to us a wider stage.
We should strive to write our second language as well as possible, with elegance and precision, style, restraint, and power. We may even find that writing in a foreign language is easier than translating into it: when we translate, we are bound to the path chosen for us by the original author; when we write, we are making our own way.
I came to love English, to appreciate its difficulties and beauty, its subtleties, its style. Over time I learned to think in English, now I often dream in it. Do I write like a native? I don't think so: we are often blind to our faults. But I'm attuned to the way good English is written: for certain things, it is a more flexible tool than Italian.
In English a good standard is saying things in a simple manner, trying to be concise, to use the active voice. Far too often, in Italian we find instead convoluted sentences, needlessly complex syntax, the use of language not to communicate but as a way to show off. Hence, so much legal and bureaucratic verbiage, and also the misplaced love for half-learned, and one-fourth-understood foreign (especially English) words when Italian ones would do.