Secret of Feedback; Rule # 2: Never Hit a Practice Shot with Bad Alignment

Nothing is more ridiculous than standing at address in a poor position, with your shoulders, feet, or hips aligned in the wrong direction, trying to hit a good shot. Because with poor aim even a good swing will make the ball go to the wrong place. Your subconscious will always fight against that and will prohibit you from learning a good swing. 
Your natural instincts, guided by your desire to hit the ball to your target, will force you to make a compensating swing, to try to make the ball go were it is supposed to. It is the subconscious compensations that make the swing so difficult for so many golfers. On the other hand, from a perfectly aligned position, a good swing results in a good shot. 
It is very easy to practice with good alignment.
First, before hitting even one shot, take the club you are going to be hitting and place it on the ground, aiming exactly at your target. The butt end of the club should just touched the first ball from behind, and make sure it is and exactly at the target. 
Then put your two iron, which isn't good for much else, in the aim-club position of parallel left alignment. 
And finally, pick up your hitting club, set your feet and body parallel left, and without lifting your left, or front, heal, turn the toe towards the target 30 to 45°. Now you are ready to practice. Be sure to hit all your practice shots this way. If you change your target, reset your hitting and aim clubs on the ground. 
While setting up with an aim club is simple and takes no time, it is still ignored by almost all amateurs. PGA and LPGA Tour pros, however, are much better about this and work with aim clubs all the time. They know what an advantage it is to make perfect aim a habit. The more practice shots you hit with perfect alignment, the better perfect setup and alignment will feel to you on the course.