So what should i buy for my black car? Im new to the detail game. I have always paid someone to do it.
If you daily drive black, go with a good sealant/wax combo, especially in that Texas heat.
If the car sits outside etc, a Carnauba wax can begin to melt when surface temps hit around 185F.
Personally if I were you, and you're just looking for good last step protection then you cannot beat the look of the following three products used in conjunction:
Chemical Guys Black Light (Glaze/Sealant)
Chemical Guys Lava Wax (Hybrid wax, good to 300F surface temps)
Chemical Guys V07 Spray Sealant (Detail Spray / Sealant)
You'll also need some good plush microfiber towels for buffing, as cheap ones found at pep boys or target will induce swirling into your paint.
A good detail spray to add to the mix is Finish Kare #425 Anti Static Spray (helps keep down the dusting)
If you're looking for a good show wax, then you can go venture into some of Zymol's offerings. Nothing imo beats how some of the higher end Zymols look, but in extreme summer heats like where you live in Texas, don't expect a lot of durability, they're beauty waxes. The more expensive estate glazes do have good durability though.
If you're looking to maintain your finish, you'll need at very least a Porter Cable 7424XP or a Flex 3401 Dual Action Polisher, appropriate foam pads and polishes.
Washing the car should be done with the 2 bucket method, which is 2 five gallon buckets with grit guards and either a foam wash pad or a natural sea sponge. One bucket is used for soap, the other is just water. After you apply soap to a panel you dip the foam pad etc into the water bucket to knock off loose dirt, then you dip it back into the soap.
The basic detailing process for a car that needs to start from square one is:
Wash
Clay Bar
Wash
Compound / Polish
Seal (optional)
Wax
Where once a year the car should be compounded/polished and every 6 months it should be clayed. Claying and Polishing will remove any layers of wax protection so the car will need to be resealed or waxed after. But standard maintenance would be just routine washing with detailing spraying, then rewaxing/sealing once every 4-6 weeks depending on weather conditions.