Idea for a new arg but I can't make it

I'm thinking of creating an arg idea where the protagonist is NOT ok like if he or she was tired of holding depression and it will starts as a normal arg where the entity haunts them until they slowly realize what's going on and actually help. If anyone would like to take this Idea please credit me. My yt acc is @SonicthefastestXD with my actual name channel is DamianG. Bye reddit.