my life is trash, its obvious my parents show favouritism to my sister, they said it themsellves than im useless and overshadowed i want to kms and never exist in this world its frustrating, i just want to leave everything behind.. even if i die my parents would probably think "oh shes just sensitive atleast she isnt here to drive the home crazy" like okay i know im not worthy enough to live, i just want to freaking die, my parents always find every way to blame me when i just exist trying to survive in this world, but i feel like giving up, im 15 already dealthing with having no friends, depression, social anxiety and im just socially insecure i dont know what to do anymore