Hello Frustratedgirl100,
Thanks for that info and for choosing the Apple Support Communities. If I understand correctly, you are getting an error on your Apple Watch about iTunes Store and purchases. First, please restart your Apple Watch and iPhone and test your situation again.
How to restart your Apple Watch
Restart your iPhone
Next, make sure your Apple Watch and iPhone are up to date, as well as test this with your iPhone on cellular data and different Wi-Fi networks:
Update your Apple Watch
Update the iOS software on your iPhone, iPad, or iPod touch
Cheers!