Woodie didnt share but he is a BCA instructor and good at helping folks.
1.) I recommend getting a review with an instructor, let him point out issues if he sees any.
2.) If you wear glasses, like I did, I improved a ball at least by getting Lasik.
3.) Drills. Boring but gets the most out of your practice time and it lets you keep track of progress.
4.) Playing people better than you. Try to get in games that punish you if you miss or leave an opening.
5.) Gamble. Flame me if you want, but I think most people need help focusing, and gambling keeps you in it. I know if you are playing for "funsies" you might take a flyer, but if that flyer might cost you $20 than you might better understand shot selection. It also helps with learning pressure and how to handle it. It you dont believe it, try it a few times, then tell me.
Good luck, your friend in pool,
Ken