If you don't remember your password, you require to recover your account. Now below the login password entry field on Facebook's sign-in page is a link: Forgot account- Click that, and you'll be taken to a page where you can enter the email address or phone number associated with your account.
You are just asking about how to hack a Facebook profile. If it is our real account then you must have to have the email id and password of that email. I do not think it is possible without any of the information about yourself. Send Facebook moderators a mail about your problem, I jope they will show you a solution.