First setup attempt for my WD hitch. Maybe wrong

Simple. As others have said, you need to lower the head a couple holes down. I'm willing to bet that you're already on the lowest hole. If that's the case, you need to spend $100 on a longer shank.

For what it's worth, I have a Dodge Ram, and the standard shank length wouldn't work, and had to buy a longer one.

That also seems like ALOT of rear-end squat, and I can see your front end is lifted. I think you need more washers in the hitch head.