Can not recover my wallet password from macOS multibit wallet from 2013!

Hi everyone,

I mined bitcoin for a few months back in 2013.

I stored the wallet on my MacBook Air in a multibit wallet.

Recently I tried to retrieve my funds but the wallet is saying incorrect password (I’m pretty sure the password is correct)

Apparently multibit Classic is very outdated.

I have been searching online how to brute force my password so I can transfer my funds to a newer, secure wallet.

I am not having much luck 👎🏾

I have the bitcoin.key for the wallet but not the wallet.

Can anyone help me please ??? I can’t use online guides as they all say I need the wallet (which I can’t find)

Thanks in advance 👍👍