how do i get my icloud email password?

Your Apple ID password is your email password

If iCloud Keychain was always set up in iPad and you autofilled the iCloud mail password it can be viewed View your passwords and related information on iPad - Apple Support

View and copy a password for a website or app account

1. For an account that uses a password, do one of the following:

• • Say something like: “Show me my passwords.” Learn how to use Siri.
  • Go to Settings  > Passwords.
  • On a sign-in screen, tap .

1. Tap an account, then tap the Password field.
2. To copy the password to use elsewhere, tap Copy Password.