I punched something real hard and the area of my hand where the pinky is hurts when I twist my wrist and when I make a fist, is it broken?

Boxer's fracture? Not sure exactly where you are feeling pain but striking something hard with a closed fist can result in a boxer's fracture, or another fracture. Get this checked out by your doctor.
Could be . . . Punching something hard often results in a fracture of the 5th metacarpal, the bone in your hand that forms the knuckle of your pinkie. An x-ray can be used to identify a fracture.