Please take as much time as you need. Don't beat yourself up or think you've failed.
Regarding taking Anakin out of the duel, can you use one of the shots of Dooku force-pulling a "thingie" off the wall (from the Yoda part) and throwing it toward Anakin? The impact would be implied, but we could then see Anakin hit the floor (I guess the rough part is still removing the smoke when Anakin's laying on the ground).