I belong to the Gold Prospectors Association Of America. Many gold prospectors use dousing to find gold. I have used it to some success.
Some guys use a topo map of the area and a pendulum (or plumbob) to find a good area to start the search. THen when they get there they resort to dousing rods to pinpoint where to dig.
You either can or can't douse. I don't understand why, just some people don't have the knack for it.
The other thing is not to "try". Just let it happen. Don't overthink it. ignore the rods, eyes forward, think about what you want to find, and slowly walk, ask out loud "show me the (fill in the blank)"
Be specific though, "is the gold two feet deep?" if you get no indcation..."is the gold 1 foot deep?" if they cross then you know it's between 1 and 2 feet deep etc...
It's fun