I've not kept golden skinks, but I can offer you some general advice that you may (or may not) find helpful.
First, insectivorous lizards are best fed more frequently than only twice a week. I would recommend feeding at least 3 times a week. Feeding every other day is an ideal schedule.
You should also try to offer a variety of foods. Crickets are a good staple diet, but waxworms, mealworms and other insects can be offered as well. Make sure that you add powdered vitamin and calcium supplements to 1-2 feedings per week and that you gutload the crickets before feeding them out.
Try to feed your skinks when you notice they are most active, and remove any uneated crickets from the cage once they're done eating. Hungry crickets are well-known for nibbling on live reptiles and can cause significant damage.
For care sheets try googling for golden skink or Mabuya multifasciata. I also highly recommend the book Feeding Insect Eating Lizards by David Zoffer.
Enjoy your new pets!
-Z