Great drills Greg.
A good game to introduce pressure and competition is to practice putting with a friend. If you have one.
Pick 2 holes about 10ft apart. Putt to eachothers holes until someone holes out. When one of you does it, swap ends. First to 5 hole outs wins.
The trick to it is that the rules of the game mean you cannot line up your putt or take any time over it. You've just gotta place the ball in your stance, look at the target, and roll it.
It's a great game for learning how to "let a putt go" and is damn good fun with the added pressure of beating your opponent, especially when it's four-a-piece and the next hole out wins!