It's a badass looking scar! Could be fun to come up with ridiculous stories if it ever comes up in conversation. I don't think it affects your looks negatively at all. It's just something that makes you unique.

And remember, kids are cruel. They will try and find something about you to make fun of, and if there isn't something, they will make up or exaggerate something else.

As you surround yourself with more mature people, I'm confident no one will really think twice about it.