I can’t sign into my email account?

Whenever I try to sign into my hotmail email account it says my password is incorrect. I haven't changed my password since I set up the account almost 5 years ago. I can't reset the password because I can't remember my security answer, and the email address linked to my account is no longer available. I've tried submitting a form with my information twice but it says I haven't provided enough info, but I've provided as much info as I possibly can. I don't know what else to do.