While I fully appreciate that some of these 'tricks' about hands on the bottom turning with the trailer, and so on, can help some people. You still are not learning to reverse with a trailer naturally, and are having to overthink this.
I have reversed all sizes of trailers, with all sizes of tow vehicles, and definitely the shorter the wheelbase, the trickier it is. I know a tent trailer I had, I had to pay good attention to backing it up, as I had to stay on top of corrections.
I am much better demonstrating than trying to explain through written text, but will attempt to explain how I do it, and have shown dozens of others how as well.
Rather than thinking at all about which way to turn the wheel (to me it just seems too confusing), instead think about which way the back end of the tow needs to go in order to get the trailer to move the way you want. You can even pretend that the trailer is unhitched, and you are pushing it backwards by hand. Which way would you swing the hitch to move the trailer in the intended situation? This is the same direction you should move the rear end of the vehicle.
Another thing (and someone before did mention this), do not turn your head around and look backwards, instead use your mirrors. Not only will it be easier once you get the swing of things, you have a way wider field of view and can see alongside the trailer.
I have attached a diagram I did up quite a while ago, of the steps to reversing 90° into a parking spot. It may help some.
And for a bit of fun, as well as a helpful training tool. Try out THIS