My dilemma is I have a wire shelving rack in my closet, and from putting too much weight on one side, the shelving came apart, I tried putting it back together but no dice, the problem is, theres 2 white screw thingies that go into the drywall and then 2 nails that go into the 2 white things, and when the nail goes in, the screw opens up 2 hooks that grabs onto the drywall....since the weight pulled it out, the holes are too big to hold the screws in place now, what are my options to fix this?I want to use the same holes as its aligned and centred...any help would be appreciated as I have no home improvement expertise