I dont want to be here

I am the family fuck up. I am the burden. I am the "idiot who can never do anything right". Everyone's problems are always worse than mine. I want to disappear. I want to be gone. I got screamed at by my 29 year old brother than im an idiot and a loser and lazy cunt because i left a broken lightbulb in the basement because no one goes there and i couldnt see. And my mom just lets him degrade me. I moved from my dads because hes a narcissist. But he would never let my brother treat me like garbage. I am 17 and im supposed to be the adult. No. I am a fucking kid who graduated early and is going to college in fall. I am going for my PhD in Psychology to become a fucking clinical psychologist because i want to. I will be successful. But why cant i ever be happy anymore.