power on stalls - some help would be lovely!
For training purpose I always had my students stall the aircraft completely during power on stalls and we always got a wing drop in every aircraft. It's common mistake for the first timers to apply opposite aileron to counteract the wing drop.
What I use to tell them is to hold their elbow tight against their body and use the rudder to pick up the wing while releasing the back pressure and add full power. If they kept doing it after a couple of times I used to hold my hand on the yoke and not let it turn left or right. You can tell your instructor to do the same for you until you get more comfortable with the wing drop and the habit of using the ailerons disappears.