Goats need other goats for companions. They will be happiest that way. It may not work out housing your goats with other species. It depends on the situation. I have seen/heard of horses and cows killing goats.
I wean kids at 3 months old.
Goats are known for being mischeavous, and breaking out.
My goats get hay (a grass/alfalfa mix), grain, minerals, and water everyday. Depending on pregnancy status, age, milking, sex, etc. determines when they get grain, and how much. They are fed hay twice a day every day.
If you are milking a goat that doesnt have kids on her I would milk twice a day. Usually 12 hours apart. You dont want a doe sitting there with a full udder, in pain, waiting to be milked. You have to be regular for whatever time you decide, and have to do it everyday. You cant take off for long periods of time when you have milkers.
If you are milking a goat with kids on her you can do it several ways. Some people "latch" kids where kids are locked up at night away from mom. Then the mom is milked in the morning, and kids are kept with her all day. That way you are milking once a day. You can try to milk with kids on doe 24/7 but you wont get as much milk. Plus you need to leave some for the kids.
It is easier if you have a milkstand to do the milking on. You need teat wash to use on teats before and after milking to prevent masititis. Also, I prefer to keep the udders/stomach clipped to keep the process cleaner.
Since you are down south where the parasites are known for being worse you will have to deworm more often. I live in Michigan, and deworm 3 x's a year. I do not have a problem with worms though. Goats need an annual vaccination of CD/T. CD/T is Clostridium Perfringes C&D Bactern -Toxoid. This is the immunization use to prevent Enterotoxemia and Tetanus. You give 2mL SQ no matter what age, sex, weight, etc. Kids get boostered with it at 3, 6, and 9 weeks old. They should receive it earlier if the dams werent given proper prenatal care. Also, kids will need a coccidiosis med to prevent an outbreak of it. This will kill a kid quickly, and provide stunted growth. What method you use to prevent/treat is up to you. However, commonly a Sulfadimenthoxine is used.
A goats health and their nutrition will affect the quality, and quantity of milk produced.
These arent dumb questions at all but the right ones to ask