Ciao a tutti

Mi scusi per aver scritto in inglese.

I have now been an Italian resident for about 2 years. At the start of this year I started trading with bitcoin and altcoins and now the time has come to withdraw the amount back to my Italian bank account. My question at this moment is how do I proceed with the taxation.
First, in your opinion, should I search for the tax adviser?
Second question is, what is actually taxable and when it is taxable. So for example, what I first want to do is to withdraw the initial amount of money (the amount which was initially invested) from my Kraken account back to my bank account. So whatever is left on all of my exchanges on which I am trading in is basically my profit. When do I report the value of all of my exchange accounts and in what way? This question is very important since, logically, the value of my account varies according to the value of crypto currencies I am currently the owner of and their value. I have 99% of all of the trades logged (except some trade from the shapeshift exchange) so proving the amount of profit shouldn't be a a big issue.

If this is an important information, I am more or less a casual trader (not nearly a day trader chasing for peaks and dips). I only did unleveraged trading and no mining was involved at any point (strictly trading only fiat<->crypto and crypto<->crypto).

If anyone can share his experience and give me some advice I would be highly grateful.

Selekkta