Thanks to all for the help. I hope to find a school not very expensive , qualified and with links in some companies. I have heard that some people after having spent so much money for the various licenses, they don't find job. That makes me scared.

I don't know where I will go, I have only decided to study the licenses in the foreign countries. in England or U.S.A.
My dream is to work in a big airline company, maybe flight long distance ( paris<-->newyork for example)...but but but. I'm 20 years old and I don't now how to do that. And I don't know how this beautiful and huge world works.