look in the month she has until the tournament she obviously can only work on what she already knows. However, if she wants to stay relevant as she gets older and guys are getting stronger because of puberty she's going to need to learn how to wrestle at least on a basic level. Otherwise she'll just get horsed around when she gets older. As more and more wrestlers start going into jiu-jitsu it's not going to be that easy to just guillotine or rip out a kimura against them. or just pull guard
So in a nutshell, while it won't really matter either way for this tournament. She needs to learn how to wrestle for the long term