Reposting your issue(Old post here forums.xbox.com/.../337570.aspx) wont help you get your problem solved any faster and is against the forums CoC. Thanks!
Heres what i posted in the other thread
Calling customer support can help. They can help you reset your passward or instruct you on how to do so.
Click the following link support.xbox.com/.../contact-us
EDIT: If you dont know your email and you dont have your account on your xbox then your kinda screwed unless you remember your Email