I'm going to tell my neighbors to shut up
Why would you say that to your neighbor?
Their music is too loud and I can't rest in peace.
I understand that you don't like that your neighbors are loud, but telling them to shut up is rude and impositional. Don't force yourself on your neighbors, educate them and work with them to solve the problem.
Fuck, they don't care. They are just as bad as me. I'm gonna spray paint the walls with my graffiti.
You shouldn't damage their property either. Just go over there and explain to them that their music is too loud.