mail hacked, can’t gain access

My hotmail, which I used for as long as I can remember, was hacked about a week ago. When I try to log in, it says that password is wrong and after second attempt it asks me to verify my account. I can't use the alternative mail option, because that mail address was lost due to inactivity. 

When I try to verify it with a secret question it says that the answer is wrong, even though I am sure it's right. I did fill in the verification form twice with correct information, but nevertheless it was not enough to verify my ownership. Therefore, I suspect that all my information was changed, including mails and folder names. 

I have a huge amount of valuable contacts and personal information in my hotmail and skydrive, I can't imagine losing it all...

Please, help me to regain access to my hotmail, I will be endlessly grateful for your help!

My hacked mail account is: *** Email address is removed for privacy ***

Sincerely yours,

Yulia