Controling your ball from the rough so that you can actually hit the green requires a steeper swing, gripping down slightly and a tighter grip so that you can keep the clubface square and a minimum of grass between the clubface and the ball
Although you might not know it you have the ability to control the distance on each of your clubs, use the numbers game to figure out how long you should make your backswing to hit each club whatever distance you want
Establish a cleansing breath as close to putting your club in motion as possible