I do not know the admin keychain password and can therefore not change it to match my login. How do I retrieve it.
Not helpful. IF one doesn't know the original admin keychain password, there seems to be know way to change it. It seems that I must create a user account and start over and give up on going in though the admin account.
Basically there is no method to recover a Keychain's administrator password without deleting the Keychain. There is a reason for that. It's called security.
So, at best, you can reset the Administrator password for your Mac, and then, protect a new keychain with it.
Ref: Reset Forgotten Admin Password macOS Sierra and OS X 10.11 El Capitan - Neil Gee
If your Mac keeps asking for the login keychain password - Apple Support
do not know admin keychain password
