First, it might seem wierd to YOU dining alone at sit-down. As a solo veteran of about 20 trips, I know it took me a few times to feel comfortable. But there's a saying that applies, I don't remember exactly how it goes, but basically it says that when you realize how little other people are noticing you, you'll relax. I always say at WDW (and DL), unless you bear a striking resembalance to a Disney character, no one's even going to notice you. They're all involved in their own vacations. And I went to DL solo once, it ws my one and only trip ever to DL-DS had an internship in Entertainment so I went to see him. I was a little uneasy at first just being in a new place. I stayed off-site, so I was a little nervous at the end of the day walking back to my hotel. But I followed another family close enough so that it looked like I was with them. And fortunately, they didn't seem to notice. Have fun!