All volleys are not equal.

I tell my students this when I talk about contact point. The traditional advice is to hit volleys out in front. That’s good for a higher volley, especially for a putaway.
But for first volleys (if you’re a serve-and-volleyer) and lower volleys, a later contact point is required. “I’d say just inside your opposite shoulder for a forehand, and just inside your hitting shoulder for a backhand,” 
“If you’re on top of the net, you can afford to hit the ball way out in front.”

Quick Tips:

Backhand

If you hit a one-handed backhand volley, your off hand still has a role. Your hands should work together, with your off hand moving back as your hitting arm punches forward. This will keep you balanced.See the photo below.