As far as burning the paint, a WAX should never do that, cleaner waxes, polishes and compounds will do that, but with a real wax the worst you do is the dreaded swirl marks.
There are countless helpful videos and articles on Meguair's, Chemical guys and detailed images website.
Then there questions like, do you want to use a wax or a sealant? Or even a a combination of wax, sealant, and glaze.
Meguiar's, Chemical Guys and Dodo Juice are all great places to look for a wax you want, meguiars will be the easiest to get a hold of because you can buy it in a store, but there are some amazing products out there that really take it a step further.
What color is it getting painted?
And i don't know how valid this is, but i've been told a ton that you don't want to wax a freshly painted car for about a month