Don't worry, we will get your Stryd Paired in no time.
Try plugging in Stryd to ensure that the battery is not dead. See if you see an LED blink or solid LED light. If you see this, Stryd is ok! It just needs to charge.
Ensure that Stryd is not connected to any of your other bluetooth-enabled devices. Power off all phones and tablets that could be connected to Stryd.
If you would like to start a workout on Zwift, you can only use the Zwift mobile app. Ensure that the Stryd applications (and any others linked to Stryd) is closed on your device. For Zwift to detect you, you need to run at a good tick (~5 mph) and for at least 30 seconds.
Don't leave your watts behind! If you have Stryd would like to get your full Stryd Power Data Set, please use the Stryd mobile app to sync after the Zwift workout is finished.