I’ll put my feedback in bold. There are some things I’m not sure about related to outdoor keeping, so I’ll have to ask for some help.
Species: Veiled Chameleon
Sex: Male
Age 8-9 I have had him for almost 6 months
Before I handled him a lot but now every time I try to grab him he hisses at me and tries to bite me
You’ll need to work on building trust with him. Here’s a great blog on how to do that. https://www.chameleonforums.com/blogs/building-trust-with-your-chameleon.2396/
I feed him 3 crickets in the morning and will start feeding him another three in the afternoon
It would be better to give him all 6 crickets in the morning so he has time to bask and digest them. You will want to start cutting back on his feedings in about another month. By the time he’s around 10-12 months old he should be getting fed about 3 feeders every other day. I don’t know what types of feeders are available to you, but if you can add more variety that would be excellent. Attaching graphic below. and fo gut loading the guy that sells us the crickets gave use these kind of leaves
The problem with that is the crickets quickly digest their food and are then empty of nutrients to pass on to your chameleon. I keep my bugs well fed with a variety of fresh greens, vegetables and a little fruit. Attaching another graphic.
Watering I spray his cage twice a day in the morning and afternoon
Very good. It’s best to spray for at least 2 minutes.
I don't think he has been tested for parasites his poop is has a little bit of white stuff and then the poop is brown
It’s always a good idea to have a fecal test for parasites.
the type is a green mesh and I keep him outside wich the chameleon handler told me it's okay so I don't have artificial light
I’m not sure what levels of uvb are able to pass thru the green mesh, but your guy does look healthy. The enclosure is a bit small for him though. He really needs at least a 2x2x4’ (60x60x120 cm) enclosure. Also, the mesh of his current enclosure looks like a predatory bird or other animal could very easily tear thru it to get your cham. Hardware cloth is a heavy duty wire screen that would be much safer. If you’re handy, I’d suggest building an enclosure.
I don't understand what this means: cage floor to basking spot)? Lowest overnight temp? How do you measure these temps
As you keep him outside, this doesn’t really apply. However, you do need to monitor temperatures. Ideally we like to keep our male veileds around 82-85 F (27-29c). At night it is best to have a good drop in temperature, but outside that happens naturally anyhow.
To create humidity I mist twice a day I don't know how to measure it
Again, keeping him outside this doesn’t really apply since he has unlimited air flow. When we keep our chameleons inside our ventilation is limited and we need to monitor humidity and keep it within 30-50% to prevent respiratory infections.
Yes I am using live a live plant and I don't know what type the guy didn't speak English nor Spanish so I couldn't ask
This is one of my biggest concerns as he needs more plants and branches or vines. He needs to have plenty of leaves to take shade under and cool off if he gets too hot. He also needs lots of branches to travel on and get exercise and stimulation. Males especially can be quite active and patrol their enclosures several times a day.
He is left outside in My backyard not close to a road bc we live next to a golf place
Is there a tree that you can place him near so that he isn’t in the full sun all day? If not, you should cover at least half of the top and maybe part of one side to provide him some shade...otherwise he’s just baking.
I live in Jakarta Indonesia
There is something black on his crest I am worried about and I don't any vets because I recently just moved to Indonesia
I do believe the black is just part of his natural patterns/colors. Most male veileds do develop black along the front of their casques and bony facial ridges as they mature.
The biggest thing I don’t know about is if you should be providing any supplements and how often. He doesn’t need any vitamin D3 as he gets plenty from the sun. I would think he still needs a calcium and multivitamin, but need to ask @janjan20 or @Kaizen to provide that info and any other input they have about keeping your guy outside.
By the way, welcome to the forum! Very glad to have you here. 
