Park your vehicle a foot away facing the wall. Mark the lines where your headlight beam is. Reverse your vehicle 7 meters in a straight line. Follow the guidelines on how to lower and center beam patterns. Ideally, it should be an inch lower and 2 inches to the right. This all depends how your headlight is configured. Whether you have single housing or dual headlight source.

Adjusting it close to the wall will be useless because you can't see how the light beam pattern adjust.