Striking the ground early is a common shot and needs to be dealt with in the correct manner. The 'avoidance' behaviour of this shot (trying not to hit the ground) will lead to a really sloppy movement through the ball and yet more inconsistency in your strike.
The Yips is a lot more common than is generally believed. Most of us will experience some level of movement dysfunction at some point in our golf career. That said, very little is truly understood about the phenomenon. My approach is born out of years of dealing with golfers that exhibit the issue and my research into automaticity and motor learning.
As you will be very aware, shanking is highly destructive and soul sapping, yet so easily done. In the same way, it is easily fixed. Often with the simplest of drills. Here are a few technical check points before working on the spatial awareness drills.