Putting Breaks

Say I could putt straight, I could determine the rolling speed, say I could repetitively execute the same putting stroke, say I am willing to spend hours and hours to practice putting, but how could I determine the slope on the green? How am I able to “practice” how to read breaks? Determining slope or break on the green is more a personal intuition and experience from the combined judgments from rolling speed, grains, putting strokes and etc.

First, putt straight directly aiming to the pole / hole with the correct speed, if there is a right-to-left break, the ball will break away to the left.

Second, virtually measure how much the break is by determining the distance from the ball that comes to a stop to the hole. This distance should be how much the break is, thus on the next putt, I should aim to the right with such measured distance

Third, putt by aiming to the right with the distance measured using the same stroke from the first putt. Fine tuned the stroke or breaks if the ball does not drop into the hole

Fourth, read the green again by squatting down, from 20 feet away or from the other side of the hole, “train” the brain to recognize the break and slope-reading.