How do I recover my Apple ID email?

See If you forgot your Apple ID  https://support.apple.com/en-us/HT201354  and

 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 to try to recover either.

You also are likely to need to see If you forgot the answers to your Apple ID security questions https://support.apple.com/en-us/HT201485

Is it your Apple ID? If so: If you forgot your Apple ID - Apple Support