One trope that always get’s me triggered, is when the Hero pulls out that Moral Compass and goes “I’m the Hero, I should always save everyone no matter what.” When they’re really not ready for the Job. As Ares alr said in chapter 2? If you don’t want others to die protecting you, you must first be strong enough to protect them.
Given that to some extent, her attitude is expected when nobody is giving her comparisons to gauge her strength. Would it also kill her to do some research which usually is the most optimal thing to do than head rush blindly into something?.... pretty sure if you ask anyone, what’s the optimal level to fight a dragon, some people would give a proper explanation. Heck, Ares even said that people train in the forest till 30, a high level monster then should be at least 30 in that case, you’re 15, easy math