how do I discover my email password?

If you are asking about the password for the email account that you are using for your Apple ID, go to the email provider's web site. At the log in function, there is normally a reset password option.

See If you forgot your Apple ID password https://support.apple.com/en-us/HT201487

You also can use Having trouble signing in/iForgot https://iforgot.apple.com/password/verify/appleid 

And you undoubtedly will need to see If you forgot the answers to your Apple ID security questions https://support.apple.com/en-us/HT201485

You are welcome.