Every player knows what it’s like to not hit their best approach and a soft volley. When that happens, don’t assume the point is over, but do prepare for the worst. Back up and get into a defensive stance.
Start backing away from the net, when you get to decision area, split back and keep your weight forward. You should be up on your toes leaning forward.
As the ball comes back over the net, you can use your body weight against the ball to push it forward and start moving towards the net again, getting yourself back on offense.