If you get the real points of the door frame drill including the ground forces/connection, one big revelation is that you
won't need to think about making a throw motion - it will start on its on when you land in the plant.
Having had very little other sports background, my body had a lot of trouble finding any connection with the ground at all.
An example on ground connection: In hindsight, the closest thing I'd done before were shuffle or crossover side kicks where almost all of the power comes from the weight shift/mAss leading/ground force/connection. Trouble for me has been taking the same principles and transmitting them up through my backhand. When my drive leg works more like this in standstill or X-step I get much better throws. It's because the leg and hip action and leveraging is "the same" except for the posture/chain for kicking instead of throwing. It's the same thing the rear leg should be doing in DFD or throws.
I do think it's helpful to tinker with whatever athletic moves you've done before and figure out how much the ground is helping you generate power- if you did it growing up it probably became unconscious and automatic at some point. And you were probably better at some moves than others...