I need advice and compassion

[clehrich]

Beyond the basics of the Berne convention and so forth, and unless someone here on the Forge knows something about Italian intellectual property law, I think you're going to have to ask a lawyer in Italy.

But let me reiterate the really essential thing, said by several of us, but said best by greyorm:

At some point, if you plan to publish commercially, you will have to put your project out there for the world to see, and possibly to steal...it will not be any easier to keep someone from stealing your ideas at that point, and you will have no more legal protection than if you had not published it commercially.

Unless you have some good reason to worry about theft, like you know of someone who's planning to steal your work, I think you're putting the cart before the horse.  Spend your energies on the game.