Vent. It's a little long.

I feel so terrible. I feel like a terrible person, kid, friend and everything in general. I don't know if anyone has the same experience, but I'm just tired. My parents and all relatives expect so much from me, but i know that i won't be able to meet their expectations and just fail them. I fail everything. My studying, because i don't remember anything from school and don't know what I'm doing even thought i pretend i do. I fail people who i consider friends; they are going through some terrible stuff and i can't even help them, i can't make them happy or make their burden easier. I get mad at myself, because i get sad when they finally start opening up to other people, I'm supposed to be happy for them, but i feel sad and worthless. I do nothing but whine and whine all days long.
I live in a normal family, my parents aren't abusive. I should be happy but I'm not. I hate my body. I can't say i don't like my life, but I'm certainly tired of it. Exhausted, even. I have no will or energy left. I don't know what to do.