If I think real hard with my lady brain…
JK…practice. I’ve thought about marking the tailgate right above the hitch(where I can see it in the rearview mirror) and also marking the trailer, so I can line them up…but, I’ve never actually done that. I always think about it when I’m actually hooking it up and then forget once I’m done. haha. Also, wifi back up cameras are actually super cheap and have night vision. I actually use mine in the trailer. It runs off a battery pack and links to my ipad(or phone…it’s just an app it connects to). I have magnets on it so I can move it around. I could easily stick it on the back of the truck temporarily if I needed to. Or you could just get one installed on your truck.