Can’t get to control center

Restart your watch

Restart your Apple Watch

1. Press and hold the side button until you see the Power Off slider.
2. Drag the Power Off slider.
3. After your watch turns off, press and hold the side button again until you see the Apple logo.

If your Apple Watch is charging, take it off the charger first. When your watch is charging, you can't restart it. 

How to restart your Apple Watch - Apple Support

I think you should visit an apple store when they reopen,might be a hardware fault.

Try this;

Try this;