Quote:who control your facebook account (profile and other informations)?
Facebook. With a backdoor the NSA and GHCQ.
Quote: is your email system/ protocol private and a direct transfer ( between sender and recipient)?
No - this is why I primarily use Zot. However, it is PGP encrypted, and stored on an encrypted filesytem. You've got to work for it.
Quote: is the agent, protocol and other service (listed below) made by yourself (to make sure no one really watches you)?
Yes. I'm not the project lead, but I am the leading contributor.
Governments have, for every day purposes, an infinite budget, no, we can't protect you from them. What we can do, is make it expensive, and protect you from casual surveillance.
Quote:i assume running a social media site like facebook is not as simple as running a mail server, but who own mail server at their home?
Actually, it's way easier. Anyone who can install WordPress can install Friendica or RedMatrix. But mail isn't all that hard. apt-get install postfix, hit return three times, done. But you don't have to host your own - the point is you have a choice of provider, and aren't limited to a centralised human rights abusing data silo.