The Prompt: Write a letter to your younger self.
Younger me,
I'm gonna sum up shit real nice and neat for you.
People are assholes. Stop fucking crying about it and start being an asshole, too. If people know you'll bite back, usually they'll leave you alone, and when they don't, you bite them as hard as you can until you wear them down. That's metaphorical biting by the way. Flesh don't taste that great so I don't recommend literally sinking your teeth into anybody.
Most people don't want to get to know you or be friends. They want to show that they're better than you. They want to push you around. Yeah, I know you've figured that out by now, but you haven't figured out how to handle it. Eventually you learn to like the fighting more than anything else. It's easy, and fucking nobody gets to touch you. The moment you let your guard down, it's the moment you're fucked.
Get up. Shove back.
The sooner you do that, the happier you'll be.