"Practice controlling the depth of your shots next time you practice or play.
Hitting deep is highly effective on serves as well as serve returns. But did you ever think to hit the ball "deep" to the kitchen line when you and your opponents are dinking back and forth? Think about the depth of your dinks to pull your opponent in closer and hit one deeper to push them back. Be intentional about it!
If you want to improve, you MUST learn to vary the depth of your shots to make it more difficult for your opponent to track and receive the ball well. While you cannot hit every ball toward the baseline, you should be thinking about hitting deep toward your opponent in relation to their position on the court. Deep shots most often land near your opponent's feet and can help prevent them from moving forward. Sometimes a short drop shot will open up as a result of pushing your opponent deep or vice versa."
Source: DJ, Pickleball Forum