Great to hear you’re throwing yourself into Zwift and I’m sorry to hear the Herd ride didn’t work out.
There’s another Zwift function which should work for you - group workouts. When you do a workout on Zwift the workout automatically adapts to your regular power output (FTP) so it feels no harder for you than for someone who produces twice your power. When you do a GROUP workout, there’s an invisible “rubber band” which holds everyone together no matter what their power - as long as you keep pedalling you stay in the group.
Here’s a good explanation of group workouts:
At 11am EST today, there’s a Zwift Academy group workout, and it’s a sprint workout, which involves very light riding in between really hard sprint efforts, so that might be worth trying. The Zwift Academy is a series of workouts which is designed to help any of us improve over 8 weeks. Sign up and give it a try - you’ve got nothing to lose!
If you’d like to ride with more people in “free riding” mode then, as MissT said, you can change your stats to go faster - Zwift tries to simulate what speed you’d go at your weight and height in real life, but you can tell it you’re lighter and you’ll go faster. This would be a bit like using an e-bike in real life.