I don't know what to do

First time being diagnoses with mental issues was 4 years ago, when i was in high school. Everything felt wrong but i don't know what's actually wrong. Could've been my family, my social (although i was never socialized), or myself. Mental health problem is running down in my family. My dad has it, my grandpa has it, my aunt has it. So it's not something new. But the fact that they think nothing is wrong with me was unbelievable. Say, if you saw your daughter banging her head so hard at 2 a.m., crying, and screaming bcs in her head some voices order her to kill herself, wasn't the first think in mind is something wrong with your daughter?. At first, my parent was concern. But then they just stopped being care. I was gaslighted, even when i was on medication, they keep pushing me off. Said i was just seeking attention. Then, should i die first? I was desperate. I want to live. Even when i told them i've been sexually harrassed by a man, they're laughing. When i'm in the shower, not yet done, they're banging the door as if i'm not allowed cleaning myself. I'm losing hopes. I'm still in college, no saving, no income, no friends, no relation to anybody. What should i do?