Thak you a million Isabella.
Andy, thank you for the sugestion. I will try to find the autority contact in Strasbourg, the biggest French city near where I live.
I hope they allow one to have te permition while living in Germany, because I once tried living in Frence and it was impossible. Landlords wanted me to prove I had money up to 1 year for the rent, or a good job, and I didn't had both. So I had to gove up living in Frence (Alsace to be more precise).
Joshua, you are right. But I have the impression that Greece is not a easy place to live at the moment. I hear they have shortage of some foods and other goods, violence and so on. But I will research about.
Colin, I don't know why but I feel Hamburg more attractive between both. I feel that in Berlin there are so many artists that I would desapear amoung them. Berlin scares me for a reason I don't know. It looks so far from the main cities on the west.
Here a link I found about berlin: http://www.vice.com/read/artists-no-longer-welcome-in-berlin