No, I'm not Italian, and my Italian is actually extremely bad. So yes, let's use English!
I think you will be able to accomplish your goal in no time. I imagine translating a grammar would be very good review of the language, because you will be forced to carefully read and rephrase every point of grammar.
I learned ancient Greek largely out of an Italian textbook (Athenaze, edited by Luigi Miraglia). Crawling through the grammatical explanations helped the language stick even more.
Horae quidem cedunt et dies et menses et anni, nec praeteritum tempus umquam revertitur nec quid sequatur sciri potest. Quod cuique temporis ad vivendum datur, eo debet esse contentus. --Cicero, De Senectute