Auto Transimission problem

When my car is cold, i put it on P and it is fine, but when i put it on D... engine run rough.

When i stop(will my engine still cold) i put it in D, my engine is choking and feeling like going to die(rpm almost go down to 0)but if i put it P it is fine.

Does anyone know why?

Also
when my car is runing at around 1500rpm and 3000rpm it have some noise(sound like something draging on the ground) but nothing touching at all
and i cant hear where that coming from

iacv? vac leaks? ignition timing? adjusted idle?