It should be as simple as go to for 3 or 4hs rule driving course by the government (or authorized government authority), then sign a document declaring that you have assisted the course and you are aware of driving rules and allow you to do supervised driving before taking the driving exam.
Every single time I'm walking on the streets I particularly pay attention to car drivers when going to the supermarket. Do you know what a lot of people are doing? Looking at mobile phone screens.
Given the fact that statistically almost everyone has a mobile phone I'm inclined to think that distraction due to mobile screen can be as dangerous (or even more) as being drunk while driving. This is also why I believe that displays in cars should be completely banned and driving instruments should be old school.
Maybe it helps you, and I don't know if that's the case for Italy, but here in Romania there are a couple of websites to which you can temporarily subscribe ("temporarily" meaning 7 to 10 days, can't remember exactly) and then you can train yourself on those test questions like you're during the exam itself. After 3 or 4 days of going through those tests again and again you're pretty much guaranteed to pass the police test itself, even if you haven't read the actual road legislation.
As for the bureaucracy I cannot offer any good advice, but maybe there are also some companies who can help you with that? (after paying them, of course).