Is Anyone Very Familiar With USTA Junior Novice Tournaments?

I have a 13 year old daughter who has been playing tennis for just under 2 years now. Around 10-15 hours weekly from local court practicing to area racquet club youth clinic with a handful of private lessons in the past. Since she's a year away from high school this year, she asked to start getting match experience. We are in a more rural, small school area just far enough outside a major city, so making Varsity next year is a definite reality for her. I entered her into a Junior Novice tournament three weeks from now. She has herself so wound up and nervous that she will be going up against some type of world cl players also in the G14 category. I tried to find Youtube videos to show her but had no luck. I'm pretty sure the girls participating will be beginners as well who make many mistakes of her own. I told her even if these girls are better which I'm sure some will be getting beat isn't a bad thing since along with practicing playing better opponets is what will make you work harder and improve. I've even looked at some of the past tournaments draw lists on USTA's website and it only looks like 3 to 4 girls even fall into her category most of the players are way younger or older in the draw list for Novice tournaments. Anyway I was looking for any helpful past experiences from anyone on what to expect at a novice tournament? I'm sure these girls also still double fault and hit out just like anyone else. I just don't want her to be mentally defeated before she even gets to the tournament. Thanks again for all replys.