The main issues in golf ( am golfing in 2 hrs ) is this:
1. Club face (open, closed, flush) at the point of contact
2. Direction of your hands/club after contact - straight, to the left or to the right.
Pro's use "shot shaping":
If you want left to right - slightly (like millimeters close the club head on contact - slight turn in your grip to see it, but end your swing with your hands and club out a little to the right.
If you want right to left - just reverse this - open the club slightly and finish slightly to your left.
Ball follows your club head contact first, then the direction of your swing.
Straight would be club contact is straight (e.g., perpendicular to the ball) and you finish hands and club straight.
Takes practice especially on the finish. Good luck!
PS - for that range 120-180 that should be a 6 iron hit 3/4 power. A 5 at full should crush 220 yds so a 6 at full should be 190 but depends on where in that 60 yard diff you want it. Closer to 180 means likely on the green else a chip shot, while closer to 120 means a good pitching wedge to get to the green.