Going downhill

I dont know what's happening to my life. I have no friends, the only semblance of a friend I have is a leach of a cousin who just uses me for a ride and as an ATM. My grades are slipping no matter how hard I try. My family hates me for some reason I can not fathom. My dad left me when I was young, none of my family except my parents have anything to do with me, and my grandparents are taking my brother to Florida on vacation but had been trying to keep it a secret from me. Not to mention I got sexually assaulted twice in the past two years. AND not to mention I think I'm slipping back into the depression I suffered from for years when I was younger. What the hell is wrong with me that is making my life so God damn shitty? This was more of a rant then anything an I apologize for it but I needed to be able to say it, even if it was only being typed anonymously to people I dont even know.