Welcome to the forum

IF you have been reading, then you missed the first important concept about being an adult webmaster.
THERE IS NO FAST CASH TO BE MADE
Sorry to burst your bubble, but it takes hard work, loads of research, and lots of determination and oh yeah, oodles and oodles of time.
One has to start off slow, to learn the mechanics of not just having a site, but in posting, in managing it, marketing it, and selling it... to the customer. Thats means learning how to put it together, images and content, to make it marketable. In that you also need to learn the basics on Search Engines and how to insure you include proper keywords for the area you are delving into.
Mega Porn One Size Fits All Porn sites are doable, just hard. Find a niche you like, are familiar with, then start there and gradually, as you learn, you can expand.
hth and good luck... you'll need it, as will any beginner