Commit to a fixed practice plan, then reassess
Asked how to practice a weak area, the instructor recommends mapping out a game plan you stick to for a week, two weeks, or a month, doing the same exact things every single time you go to the putting green so you become comfortable with those elements. He says you first have to identify the specific issue, such as short, medium, or lag putts, and then after a couple of weeks you can judge whether you see improvement and decide what to change if you do not.
Channel: Mark Immelman
Watch official source at 38:02