Ok, so looking at those pictures it looks like your chameleon is suffering from a few things.
-Dehydration
-Lack of body mass (the tail is a dead give away), due to not eating and not receiving proper nutrition.
-MBD (metabolic bone disease) this is due to a lack of Calcium with D3, and/or a lack of proper UVA/UVB lighting exposure.
Many members have given you links about proper care, but right now you're chameleon needs to see a vet. I understand you can't afford one, so for now I'm going to give you some "band-aid" solutions to help your chameleon until you can sum up the money to get to a vet, but these are BAND-AID solutions, and will not fix your chameleon in anyway, just prevent it's death for a little while longer.
You will need a few things
-Crickets
-Waxworms
- A source of Electrolytes, I use this
But You can also use a VERY diluted mixture of water and Gatorade if you can't access a similar product.
- A phosphorus free Calclium powder with D3
- A multivitamin powder like Herpative (this is optional but Ideal)
- A syringe
I included the pictures because I'm assuming you may not be 100% familiar with the products with just text, and it will give you a reference if you decide to run to the pet store to get these.
Take your crickets and waxworms and use a mortar and pestle or something similar and mix in the Electrolytes with water, or your diluted Gatorade mixture in with the waxworms and crickets, have a higher ratio of waxworms to crickets, and try to remove the crickets legs before mixing them into this. Add a dash of calcium powder and Herpative. Try to get the mixture to a watery paste, it shouldn't be too thick, but not as runny as water.
Once you get it to the right consistency, try to remove any chunky parts, and suck the mixture up in the syringe. You're more than likley going to have to force feed this mixture to you cham using the syringe, and you will more than likely have to force it's mouth open aswell, be careful not to push too much of the solution out of the syringe, do it little by little and watch the throat to see if your cham is swallowing.
Another approach could be to use a branch like object in the shower, and turn the shower head so it hits the wall, and deflects a light warm mist onto your cham, assuming it can hold itself up on a branch, If your cham beginning lapping water, try to get the solution into its mouth then.
This has helped me bring many chameleons back that were to lethargic to eat willingly
BUT
A vet visit is still in order, and an overview of your husbandry and lighting is a must!!!!!
) and possibly domestic animals(cats/dogss)
