Golf Tip I am hitting the ball right and high. Please help

Had a 40min session at the driving range yesterday evening and was hitting the ball right and high with my irons. #WTF! Just could not get it "right" and when I got it "right", I did not know what I was doing to make it "right" Found this video today giving a quick tip on how to fix it. Going to try it this afternoon. See you at the range!