Hotmail Email inactive for years

I have been trying to get my old email back, I forgot every question and password I used on that email. I've been trying for years to get it back. I went through the whole 9 yards getting it back, and its impossible. At a online chat with a Microsoft representative they have sent me to a link that reviews your email, they said its unactive and available for use, once I tried making a new account with the same @Hotmail.com email, it didn't let me, it says it is taken, please help.