I agree with NikeTide. Despite what others's say, Jacksons are not a good 'first time cham owner' chameleon, especialy since it looks like you still have questions regarding basic care. Chams need live food, so that means with the execption of wax worms (which are only good as the occassional treat) refriderating any of the feeders is out of the question.
Veileds and Panter's are much hardier.
Feeding a Cham mealworms is like raising a child on chocolate bars. They are garbage-nutritionally. You'r ebetter off using crickets or roaches as a main feeder, and then adding two or more as secondaries i.e snails, hornworms, superworms, blue bottle flies, silkworms, etc.