I want someone to narrate my confession about eating drywall
Why do you eat drywall?
I'm not sure I just do.
That doesn't sound healthy. You might have some form of disordered eating if you're okay with eating drywall. You should seek professional help so that you don't get sick.
It's just a little drywall. My throat is fine.
Even if you don't feel like it's harming you, it could be. You don't have to feel ashamed about it, but it's probably not safe for you to continue doing.