Brand new being the critical point here. I'll make it simple. Have you done your basic parking lot run to get acquainted with the bike, clutch, brakes and throttle?
After that, while you build confidence, stick with your own neighbourhood for a couple of rides, and then slowly branch out to surrounding major roads in your area. Who cares if they are not "nice, twisty riding roads." Your neighbourhood and surrounding major roads should be very familiar to you - leading to less surprises. Where the rough spots are, blind corners, tight turns, sketchy intersections, pot holes, etc..
IMO, this would be a safest way to build confidence and then just keep branching out from there..