Hello aleida147.
Thank you for using Apple Support Communities. Sounds like your Apple Watch is unresponsive. If so, we'd like to help out. If your Apple Watch isn't responding, try a force restart. This usually does help out when facing this specific issue. Click here for steps on how to perform a force restart: Restart your Apple Watch - Apple Support
To force restart your Apple Watch, press and hold both the side button and Digital Crown for at least 10 seconds, then release both buttons when you see the Apple logo.
If this step doesn't help, you might want to consider reaching out to Apple Support for assistance. They might have to physically evaluate your Apple Watch. Just in case, you can use the following link to reach them:
Get Support - Apple
Thank you for using Apple Support Communities. Cheers.