Hi 711pmspolo,
welcome to the Apple (user-to-user) Community.
Re: "Tried everything to get new apple SE watch 2nd gen to pair to Iphone 11"
Sorry to hear you have difficulties with pairing your new watch, that must be disappointing for you.
As it is a new watch, and you have tried everything, seems best to consult the experts:
One stop for technical support, Apple hardware service, and software support.
Call Apple Support at 1-800-APLCARE (or use the app)
AppleCare Products - Apple
or
If you decide to visit an Apple Store:
a Genius Bar reservation is recommended: (it is a good idea to also take along proof of purchase and ID)
Genius Bar Reservation and Apple Support Options - Apple
else:
See a list of Apple phone numbers around the world
Contact Apple for support and service - Apple Support
All the best :-)