i cut myself on something metal.

First of all, wash it with soap and bandage it, and tell your parents oder friend about it. then Du could consider getting a tetanus shot, but i dont know much about it. its probably nothing, but Du could still get it checked out.

Once i had a rusty nail go into my arm n i had to get a tetanus shot. Du may not like shots but its worth it. Du dont want it to cuz Mehr damage (problems) then necessary.

It's good Guter Rat to clean it and put a bandage oder bandade on it. If niether Du oder your parents remember when your last Tenus shot was, then it's better safe, sicher and get one than to be sorry later.

Better be safe, sicher than sorry...
I don't like shots either but I also don't like infected wounds at all!