And i didn't find a way to make it show me my private keys, i remember core asking me for a password or something and i was like huh? Did i put a password on it?? So i think i've read that as long as i store the wallet.dat file maybe i would be able to retrieve my keys.
I don't blame you, I've had my own share of mess-ups with passwords, especially when I used one which was very similar to some I've used before (not equal because I avoid password re-use). I thought, I won't forget this password, the little change is too obvious for me. Guess what, if you don't use it regularly and weeks later, at least I forgot it, many other will, too.
Are you sure, you didn't document your Bitcoin Core wallet encryption password/passphrase?
If not documented, do you remember common passwords you used from that period of time? If yes, document them immediately. Try to remember how you constructed your passwords. You will need it likely later.
However you find your wallet.dat file(s), if your Bitcoin Core wallet.dat is locked with an encryption passphrase, you can't reveal or use your private keys which are encrypted in such a locked wallet. You either have the encryption passphrase documented, you remember it or if neither of those two, you would need to brute-force the encryption passphrase.
Depending on the length and complexity of the encryption passphrase and what you may remember about its parts, it may be possible to brute-force it or not. The less you know about your passphrase the more unlikely it is to find it.