When hitting the ball out of the rough, open your clubface like a sand shot. Play the ball a little behing center of your stance and make a full swing. DO NOT try to hit it harder. (Use a higher lofted club in THICK ROUGH.)
Short Game Practice will help you to lower your score. 50% of your score is PUTTING
We all miss greens so the key to scoring is to becoming more efficient aroud the greens.