Welcome to a fascinating lifelong quest !
Advise to the housebound snowbirds. Dig below the snow and get several handfuls of grass clippings. Place these on a mat or carpet sample and practise with a downward motion of a wedge scrubbing each tiny blade off over and over ad nauseum. Remember repetition is the mother of learning and come golf season that ball will loom very large and easy to compress !
Another great drill, weather permitting, is to go out in your backyard or field with your wedge and whack some weeds.
Remember, they are your enemy-so be sure to hit down to the roots to extract them totally. Great excercise, better than beating a tire carcass, impact bag or your dog.
Happy weed whacking-
See you on the course