I watch YouTube videos where HVAC technicians effortless drive screws into metal ducts when there is nothing hard behind the metal to support it. I find doing this difficult. Is there a secret technique?

In my attempts, the screws "dance" around on the metal for a long time instead of penetrating. I suppose the technicians might be using thicker gauge metal than the ducts sold in home improvement stores. I think I have the same equipment that those guys use - drill/driver with hex socket, hex head "zip" screws or self-drilling screws. Maybe the YouTubers have stronger hands.