I will tell you exactly what is wrong. Your focusing on your hands way too much and freezing them up, not allowing them to rotate. Thus, the hossel is nailing the ball.
The hands are way too unreliable to control a golf swing effectively. Trust me, your brain knows how to square your hands up without you having to tell it. I can tell by your swing.
Also, you missed on your third shot because you had a great shot, then tried to make a greater one. If it ain't broke, don't fix it.
I had the shanks for about a week last month. My problem was trying to incorporate a one plane swing with a two plane swing. The release in the two plane swing requires timing of the hands while the one plane does not as much. You may want to look into that at
GolfDigest.com - My search for the plane truth