You are absolutely right! In fact before bitcoin didn't tell me anything, it's thanks to a friend that I gave myself to mining, I did it and I abandoned my wallet, when I saw the rise of bitcoin I remembered that I do mining but the error that I didn't memorize my password otherwise my wallet is real and for me.
We hear this a LOT around here. It's almost always a lie.
If this actually is your wallet, then you just need to install Bitcoin Core, drop a COPY of the wallet.dat in the data directory, and then start up Bitcoin Core. Try sending a test transaction, and enter the password when prompted. That's it. You've recovered your wallet.
If you don't know the password, you're going to need to remember it. There isn't going to be any way to recover that wallet without the password.
This is all pretty simple, and 5 minutes on Google (or whatever your favorite search engine is) should have already gotten you that information. Furthermore, anyone with enough technical understanding to have been mining in 2012 wouldn't generally need to ask such questions here. Both of those facts make it more likely that you have either already been scammed or are a scammer and are hoping to use this discussion to lure in a victim.
There must be an interesting story about how you discovered Bitcoin, how you got started mining, when and why you quit mining, how you lost the wallet.dat, how you found it, what makes you so sure this is the same one that you lost, and what you've been doing in the meantime. I'd love to hear all the details. Were you active here on bitcointalk back then under a different userID?
It’s okay ! I sent you pm
Hello everyone!
I found my old wallet.dat on Bitcoin Core which dates from 2012, I don't remember the exact password but I have an idea of what I had put as a password.
Isn't there a method to recover the password?
Thank you all!
if you need help, send me a pm and tell me your story
we can try to recover them, clearly my feedbacks and my trusts speak for me
Obviously there is a whole procedure, but first tell me your story and I'll tell you if I can help you or not

see you, remember stay quiet and care