Is it certain they will check cams? Maybe they'll just chill down and the situation will die this way?

Anyway yes, it's better if you pick a better way to feel ready for a competition. Self harm is peculiar. It might feel insignificant at first, as if it doesn't hold any power on you. I felt like this too and then the next thing I knew is that I began doing it more and deeper. It's my to go coping mechanism and I cannot help sometimes.

Think about it, choose a better one

One that doesn't harm your body and isn't addictive

If you have a good imagination this might work: close your eyes and imagine the competition. Step by step. As if it is a trailer of what's gonna happen. Imagine yourself winning. This works best with music. I think you might feel pumped after

Good luck