I document my younger brother's abusive emotional and physical behavior to share with my friends.
Why do you share that with your friends.
I believe that I'm providing my friends with some entertainment for the time being.
That your brother is emotionally and physically abusing you is no laughing matter. You should be sharing that information with a trained professional
It's only a little pain. I don't have time to be a baby about it.
These are the kinds of things that you realize later in life are deeply traumatic!  I'd suggest talking with a professional about it now in order to spare yourself a lot of issues when you're older.