I need help putting back spin on the golf ball within 70 yards from the green. Any help would be great thanks?

debo169 asked: I hit a Ping eye2 sand wedge 56 degree and a really cheap maxfli 57 degree sand wedge i have no real trouble with acuracy but most times the ball rolls about ten or more feet away. I can’t seem to get it the ball to settle any, and i just got a [...]