I'm so tired...

Using a throwaway account because I just don't want this linked back to my main account in case of possible conflict.

I live at home with my parents, along with my sibling and their son. It is extremely miserable because I have to share a bedroom with my nephew, let's call him Jackson. Jackson constantly is on his video games yelling and screaming, he does it all day and night, and it gives me constant headaches and I can never get any sleep due to him being loud like this. I've tried telling him to please be quiet and so have my parents but he is just extremely disrespectful and because he's an adult he thinks he doesn't have to respect anyone. I can't take it anymore. I'm so sleep deprived and irritated because there's never a moment of peace and quiet. I've thought about kicking him out of my bedroom but I know it would cause a huge argument in the family. :(