How to determine the reference point for right-side parallel parking?

[KaiRose]

Slowly drive the car out and observe the left rearview mirror. When you see the rear wheel is about to touch the exit line in the mirror, immediately turn the steering wheel fully to the right (drive slowly). This point determines whether the car will lean left or right. Try to keep the car centered. When the front of the car approaches the center, return the steering wheel halfway, and straighten it completely once the car body is aligned. Shift into reverse gear and start backing up. Watch below the left rearview mirror until it covers the yellow line, then quickly turn the steering wheel fully to the right while maintaining clutch control. After turning right fully, observe the right rearview mirror. When the right corner of the parking space appears in the mirror, if the rear wheel is close to the corner, return the steering wheel halfway plus an additional quarter turn. As the car enters the parking space, check both side mirrors. Turn the steering wheel half a turn toward whichever side has more space at the rear, then straighten it immediately when the car body is aligned.