I got placed as a Bronze 3, the placing games went very well. But then I started playing a little and every time I just get demolished, ranking last place in the whole match for almost every game. Why does that happen?

So I got this email from my school saying that they are conduction a inter-school sports tournment and there were a bunch of sports and at the end was also Call of Duty, Rocket League and Valorant! I've already registered and I'm going to b...