It is hard to say what is going on here OP but I think it is fair to say that some parents do treat school years like a competition, at least the early years when they're closer to it. As if their children's achievements reflect the quality of their parenting or their own talents and in the early days perhaps that correlation feels strong.
One day along the way we all discover that our children will be who they are meant to be and will decide for themselves. Or life throws a curved ball and decides something very different for them and for us. Give it a decade or so and the confident certificate winner could be anything. Your DD will be very different too. A bit of showing off will pale into insignificance.
Whatever our children are like they will take us parents on a roller coaster ride of happiness, terror, pride, sadness, worry, embarrassment and joy while they decide who they are and the end result will be that you realise your hand in all this was as moderator and guide, no more. Your daughter is who she is, her progress can't be measured against anyone else.
My DC are adults now. The one who won all the prizes at school from a young age dropped out of university and lives a very unconventional life having caused me massive worry in recent years. Another of my DC struggled through school, shy, never found their niche but blossomed later and is now an academic. They are both happy with their choices I'm glad to say. They are just so very different from what I could ever have imagined.
I guess what I'm trying to say @Apple97 (in a very lengthy way) is let competitiveness wash over you. It has no relevance to you and yours.