Forgot apple ID

Your Apple ID is usually your email that was used when you first set up your Mac or other Apple accounts.

Sometimes, if you set it correctly, you may be able to access the Mac or iDevices by use of your iCloud login.

• Get help with iCloud - Apple Support

https://support.apple.com/en-us/HT203512

Or:

• If you forgot your Apple ID password - Apple Support

https://support.apple.com/en-us/HT201487

Additional (blue text) links within these support articles can be helpful to gain further tips.

• Recover your Apple ID when you can't reset your password - Apple Support

https://support.apple.com/en-us/HT204921

Not sure what your issue is based on, so I'm having to venture wild guesses & speculation.

Good luck & happy trails!🌞

Apple ID - How to find your Apple         An iCloud e-mail address is an Apple ID.

Apple ID - Find