Here is a simple, 2 part strategy to win points in singles.
Hit the ball deep to your opponent's backhand corner.
Approach the net and put away the resulting short ball.
So how do you start this process?
It's best to hit a cross court shot into
the backhand corner. If you have a
fairly strong backhand, just go for a
deeper, more angled shot during a cross
court rally. If your forehand is much
better, try to run around a shot that is
near the middle of the court and hit an
inside-out forehand into their backhand
corner.
As you practice this simple
1-2 attack, notice how the weakness of the return varies,
depending on the depth and height of your shot. Many players
have a lot of trouble hitting a high backhand, so try to put
as much topspin on the ball as possible. Or, if topspin is
difficult for you, hit a high, deep shot that bounces out of
their strike zone.