feeling like an npc and having main character syndrome

i regularly catch myself thinking that the world revolves around me, like if someone doesnt reyply to my messages it means that they secretely hate me but i also feel like an npc (and i still havent proven to myself that his is stupid, which is quite depressing) because i feel like i have no original tgoughts and when i relate to something im just convincing myself that i relate to it but i havent…