Start off shooting short easy cross corner banks. Object ball half way between corner pocket and 1st diamond, about a half ball off the rail. It's a half ball hit, tip above center. Don't over think it, just shoot it like that until you get the feel for it. Then create distance and so on. I made that my first quick drill for the day to show you. This was right after my first 2 cups of coffee, I still have the jitters. LOL https://youtu.be/Ezk_YInLxEw