Many People in the golf community including me a couple years ago. The Thing most people struggle with about their ball striking is hitting the ball before the ground without thinning it or fatting it. First of all, lets talk about weight distribution. You want to have 60% of the weight of your front leg and keep your head in a relatively similar position throughout the backswing. Then Move your lead shoulder down and around. Then Extend your lead leg and push your lead shoulder up. It is important to set up with a comfortable distance between you and the ball that you can make a nice smooth swing. Now The last thing is ball position. For your wedges you want the ball in the middle of your stance. For your short and mid irons your ball position should be 1 ball length forward and for your long irons closer to 2 ball lengths forward in the stance. For Woods, hybrids and driver your ball position should be on lead heel. I hope that this has helped you to increase your consistency of ball striking and help you to flush your irons every time.