Problem with restoring of account

I have a problem with restoring of my account and I found out that even getting support from Microsoft for this case is not so easy task.

I can't restore my account using default way of restoring, because when I registered this account I specified random personal data. Besides I didn't sent emails from this account within the last year, only recieved, so I don't remember what were the last addresses on which I sent my last emails.

However, I can provide other very important information. For example, I can tell my last password which I was using during the last years. I can tell, partly, my current password, which I don't remember fully. 

I would like to solve this problem as sson as possible and I would like to ask Microsoft Support to help me solve this problem. Ideally, I would like to discuss this in live chat, which I didn't find so far. 

Thank you.