As long as you stick to reviewed/reputable ladies, you have nothing to be worried about regarding going to her incall. I understand the first time jitters...Hell, I still get nervous when I am meeting someone I've not seen before! But there's really nothing to be apprehensive about if you are going to see a lady who knows how to conduct business in an efficient and safe manner.
Looiecypher was spot on in his response. Look at the newbie friendly providers on p411, and be patient. Sometimes it's difficult to respond to 20 emails from p411 individually, while screening, setting up, and taking appointments all at the same time. Sometimes it takes a day or two to play catch up, on our end of things. To hobby, you must have patience, grasshoppa. If you think you are frustrated now, just wait...there are much more frustrating things for you to encounter along the way!
Welcome to hobbyland!!