[EdZ]

A drill for you that would be very helpful is the dowel through the belt loops.

that will help you quiet the lower body a bit to feel what 'centered' is.

It will feel to you like it is 'all arms' for a bit. You have to quiet the hips to let the hands get down into impact with the dowel in place - to clear the right hip -

Another would be to hit a lot of balls with your feet together, and slowly widen the stance back.

as far as feels for the pivot - feel like that right hip goes straight back, like your 'loading the right cheek' a bit - a more rotational feel than you probably have now

I agree with bucket - you've got a lot going for you!