Aiming headlights

What I do is simple. Level ground and a wall. Pull up close to the wall then slowly back up. While your backing up watch where your headlights are on the wall. When you back up the light shouldn't move it will get bigger but shouldn't walk away from where it was when you're up close. If when you back up and the beam climbs up you need to adjust it down. If it walks to the right , adjust it to the left. Just keep adjusting until the beams stay put.