So I think there is a slight possibility that my life is going to be going downhill really fast.

Throwaway here. Warning: It's quite a bit to read and some things are graphic.

To start off, I turned 17 this August. Back in June, 2004 my dad passed away from a heart attack. Up until that point, I've been living a rather "blissfully ignorant" life. My dad and my mom both love me intensely and they both tried to make their marriage work for years before my dad's death. They were going to get divorced, because my mother cheated on him and lied to him about it. She didn't want anything to do with him. My dad is the kind of person who will beat the truth out of you. I love my dad dearly, but sometimes he went a bit too far. I.E. I lied to him about my homework once when I was little and he made me eat a bug. I've always had a deep, deep phobia of insects, especially dead insects. So basically, you get the point. My dad was not happy with my mother lying to him and he beat her right in front of me. I defended her and in a couple of days we had a small argument about me staying up too late. That night my mom woke me up to tell me he had a heart attack. The ambulance took at least 30 minutes to get to my house. He died in the hospital and throughout the next year I was pretty reckless. My mother is pretty lenient with me and allows me to do the majority of things I want. Stay out late and etc. The year after my dad's death I smoked, had sex, cut classes for a month straight, et cetera. (I quit smoking.) I'm not proud of a lot of things I've done. Around my 2nd year of high school, the reality really kicked in and ever since then I've been having mood swings and anger issues. I absolutely hate talking about these things with my family/friends and I'm not one to let my feelings show. I think I've been in denial, but I became chronically depressed after that. It seems as though I have these depressing thoughts (not suicidal) on a day to day basis now. I've always been close to my family. This year I found out that my uncle stole my inheritance and threatened my mother. (It's a huge story that I don't want to get into right now.) I always thought I could lean on my uncle, because he was my dad's brother and he also loved me dearly. My uncle flat out lied to me about him even having any of my dad's money even though my mother had evidence of it. I've found diaries and disturbing facts that my dad video taped my mom..err ingesting his fecal matter and him beating her because of the lies. I've just been bottling things up (it helps me), and I think it's starting to catch up with me. My mother barely makes $20 grand a year and we're $33,000 in debt. College is coming up and I'm a senior and I still haven't even started to really change my grades. I've been losing a lot of my friends lately and now I just found out my mother's right artery is completely not functioning. We probably wouldn't be able to afford surgery and I'm just losing all hope now. My question is what do I do? I've always depended on my mom and dad and now I think I'm going to lose my mom. I'm just completely lost now and I don't know what I can or will do.

(edited for grammar)