chinese water dragon won't eat

[banana333]

hello i purchased a cwd 4 days ago, and he has eaten maybe one cricket since i brought him home. nothing else though. he just doesnt seem interested, but he is a juvenile, maybe 4 months old. he has crickets in his enclosure, water, heat, uvb, all the essentials. i dont know what else i can do for him. he is very lethargic and quite skiddish. can anyone help?