Green reading is not a perfect science. It takes imagination. If you struggle seeing curves, or tracing an imaginary path to the hole, here is a 3 step process to help you.
1) First, identify the point where the ball will enter the hole. For example, maybe a right to left with a descent break enters about 4 o’clock.
2) From 4 o’clock, trace back the last 3-4 feet the ball will roll and identify that point.
3) Then identify where u have to start the putt to get it to end up at the point identified in step two.
The ball breaks the most around the hole. Spend most of your time reading the last few feet.