Several things.. I think you are talking about it's towing level not parked once you get to your site.
Looks like you don't even have your propane cylinders installed yet. Those are going to add tongue weight.
You probably don't have the vehicle loaded for a weekend camping trip. People, stuff in the back, etc. Is the trailer loaded ready to camp too?
The receiver on the vehicle is probably not rated for a weight distributing hitch setup, neither is the vehicle, as it's just a uni-body SUV by the looks of it.
Your chains are still dragging, so you can 'twist' the links up to take up some of the length off, or have them cut to length and put on new hooks.
Might still be chewing off more than the vehicle can handle, but at least you are doing your homework first!
Good luck! Mitch
