Welcome to the forum! Do you have the BH Gold Tracker or one of the Fisher Gold Bugs? I know a little about several BH models, but a "gold series" detector is one I'm not familiar with by that name. The Tracker series, yes, as there's been many models bearing the Tracker name, Gold Tracker among them.
To get familar with any new machine, toss down your own practice targets, including coins or whatever you hope to find. Or not find, like nails, pulltabs and ,junk you don't want to dig. Now practice with the settings and learn the sounds the different targets make. That way, you won't be confused by all the sounds you hear while hunting. Tot lots are a great place to learn, and in your own yard, where you can also practice proper digging techniques.
-Ed
