imho result oriented practice is definitely the way to go.
I do the old drill 4 tees, 3 feet away at n, e, w, s. 3 balls must make all 12 3-footers or start back form the beginning. It's amazing how much pressure you can exert on yourself when the is a consequence to missing. If I have time, I then move to 6 footers, rarely do I make all 12 of these before my time runs out.
You can do the same with chipping, whether it is the great examples above or hitting chip shots with a 3 foot circle. Push the tees down into the ground and have to make it with 3 balls in 3 different spots, then change club etc. (to get 3 feet, just measure a putter length from the hole).
you need to push yourself, so vary depending on your skill level. if you can't come close to chipping everything in a 3 foot circle, try a 6 foot circle etc.