If this is real and there is significant money involved, you should contact this reputable company. I hope I got the right link.
http://walletrecoveryservices.comhttps://bitcointalk.org/index.php?topic=240779.0Hey everyone! I really need some help here. I found a wallet.dat from 2013–2014 with some balance, but I have zero memory of the password—it’s been ages.
If you don't know anything, but the password is very long and secure then you will have no real chance of breaking it.