Okay I will help you fix as many of the faults as I can find to teh best of my ability, which there are a lot! I will plug them into the same help form so they are easier to read. TIFF if you have input that would be great

(sending vibes to tiff!)
Chameleon Info:
Handling - If the chameleon is not stressed and running away and puffing up at you it is okay to handle her occasionally, but typically less is better.
Feeding - Babies should really get as many feeders as they can eat, do not use mealworms! They have little protein and their exoskaletons aren't able to be digested well and could cause impaction if fed too many. Crickets and roaches are great staple foods, roaches I advocate much more as they are meatier and easy to breed yourself. Feeders should be fed a nutritious diet before being fed off, this is called gutloading. Here is a link to Sandra's blogs about nutrition, feeders, and gutloading:
https://www.chameleonforums.com/blogs/sandrachameleon/75-feeder-nutrition-gutloading.html
Supplements - Okay jacksons are tricky, they can be oversupplemented very easily. Dust your feeders EXTREMELY lightly with PLAIN calcium without phosphorus or vitamin D3 every other day(or when she gets older every feeding because you only need to feed them every other day as adults, babies should be fed daily), EXTREMELY lightly with the calcium with D3 once a month, and EXTREMELY lightly with a multivitamin supplement once a month also, but not at the same time as the D3.
Watering - Chameleons need to be misted only, this is how they drink, a bowl will not do at all. they do not recognize standing water and even if she is used to it from petsmart still water is a breeding ground for bacteria, she could drown, or even poop in it. If you are unable to mist her at least 3 times a day you should invest in an automatic mister. MistKing is the best and well worth the money.
Fecal Description - Should be dark brown with white urates at the end. Orange or no urates means she is dehydrated.
Cage Info:
Cage Type - You need a screen cage female jacksons don't need a huge enclosure and babies shouldn't have more than an 18x18x30
Lighting - You need a basking bulb, just a regular household 60watt works best, but not the compact kind the actual yellow light bulbs. You also need a reptiglo 5.0 tube UVB bulb with a linear fixture, this works best. I personally don't trust the compact UVB's but there are varying opinions.
Temperature - Okay so I BELIEVE jacksons can have a basking temp of about 80 degrees, with ambient cage temperatures to the low 70's.
Humidity - Misting creates humidity, which is essential to the chameleon. I believe you should keep your levels around 60%, but check with someone like Miss Lilly.
Plants - Live plants are great! They also help with humidity. Good choices are hanging pothos vines, schefflera tree, and hibiscus. be sure to rinse the roots and repot with organic potting soil. Also rinse off the entire plant before putting it in your chameleon's cage.
Do not put any type of substrate on the cage floor, they can eat it and become impacted and die, Especially babies. Paper towels or newspaper work great, or nothing at all.
That's all I got for now

so just goes to show you, NEVER take the word of someone who works at petsmart/petco unless they can tell you how they know what they do and what their credentials are.