I forgot my apple id 3yrs ago who paired on my apple watch. Now dont know how to unlocked da activation locked. Please help

Typically an Apple ID is an email address you have used.

Click on this link to read what to do "If you forgot your Apple ID" --> https://support.apple.com/HT201354

or go directly to this link --> http://iforgot.apple.com/

Also read about "What to do after [or before] you change your Apple ID email address or password" - https://support.apple.com/HT204071

If you still need help:

Contact Apple for help with Apple ID account security "This article provides country-specific Apple Support contact information for customers seeking help with their Apple ID password or other security-related issues."

https://support.apple.com/HT204169

Click on this link to read "About Activation Lock on your Apple Watch" --> https://support.apple.com/HT205009

- Apple can completely reset a device if a person can provide sufficient evidence of valid ownership. Do this online at: Activation Lock support request - https://al-support.apple.com/#/additional-support Apple says, "Proof of ownership documentation is required," but does not state what currently constitutes proof. Prior to this new online service Apple typically required the original receipt issued by an Apple Authorized dealer and documented provenance (so typically it would be the original owner who does this, or a descendant with legal proof of ownership).