I have an old wallet from 2013 with some BTC in it possibly. I have guesses for what the passphrase could be but not 100% sure on it. Everything I find online is to use pywallet but I unfortunately am a total scrub when it comes to python scripts. So really I am confused exactly what I need to do to obtain the btc out of this wallet. Do I need to extract the private keys from my corrupted wallet and import them into a new wallet? or can I simply merge the corrupted wallet with a new one and the merged wallet will read right? I know pywallet can do all these functions but have no idea myself on how to go about it. Thanks for any help.
Install Bitcoin Core and they can do all this work to import your old wallet.
Bitcoin Core's -salvagewallet try to recover a broken wallet database (wallet.dat file).
I wrote a guide to corrupt Bitcoin Wallet recovery. Yes, you should use pywallet. It can dump the private keys from your wallet to a file even if Bitcoin Core fails to salvage it. You can then import them into a new wallet.
Dump the wallet with pywallet to extract the private keys:
python pywallet.py –dumpwallet > wallet.text --passphrase= PASSPHRASE
Now find the address containing your Bitcoins and sweep the private key.