That is... pretty extreme. When did this start happening?
Since your account doesn't seem to work but your friend's account does, then we know that it's an account-related issue, but... All I can recommend to you is to send in a ticket through Contact Us
with the information you've provided here if you haven't done so already. With any luck, you might be able to get a fix through that channel faster than through this thread. Keep in mind that you might have to wait for a response, though I'm actually surprised that you stuck around this
long with the problem persisting like that (regardless of GM contact).
If that doesn't work, you could try to PM a GM on the forum and link them to this thread.