What can I do if i forgot the email and password

If you forgot your Apple Watch passcode - Apple Support

if you mean activation lock then

the activation lock is not really on

the apple watch it's a theft protection measure on apples servers

it needs to be removed

About Activation Lock on your Apple Watch - Apple Support

if you don't know your appleID

Recover Your Apple ID - Apple

if that does not help you then you

need the assistance of apple

Additional Support - Activation Lock (apple.com) and or

Get Support (apple.com) , Genius Bar Reservation and Apple Support Options - Apple