i cut myself on something metal.

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

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

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

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