My father has massive anger/abusing issues

I can remember my father abusing me for every little mistake I did wrong since I was a kid. He constantly screams when things don't go his way, especially to his relatives. And the screaming is like the "I'm going to kill you" kind. It's serious. My mom recalls a time when I was like 2-3 years old, I took some rice from his bowl and he started to hit me. I also remember the time, about 8 years ago, I must have done something 'wrong' for him to hit me on the back of my knee with a tennis racket. I'm 18 years old. When he hits, he uses a lot of force and a lot of power. He's like one of those people where if something pisses him off, it WILL piss him off. He uses anything he can find to throw at me hard and I'm usually left with bruises. Sometimes I feel like he has a mind of a 6 year old. He's immature. He does things to piss people off, like the other day, I fell asleep on the couch and he woke me up by splatting water on me and claimed there's a "fly". I try telling my mom but she thinks I'm overreacting. If there really was a fly, he would usually try to smack it down with a book, but there was obviously nothing in his hand. I got up to wash my hands and when I got back, he was just pointing at the fly, calmly, and that's just not like him. And when he walks passes me, he tries to let as much farts as possible. It's disgusting. I admit that I do the worst things though, I talk back to him and when he hits me, I try to fight back, which just makes it worst. The last few years, he has started throwing chairs and hard objects at me. Just yesterday, I was trying get back at him by splatting water on him and he immediately hit me. Then he proceeded to try to turn off the computer I was on, and when I tried to stop him, he placed his fingernails a little above my chest area and scratched in as hard as he could and I have 3 red lines right now. It's painful to think about it. I really don't know what to do. I don't want to make my mother more sad. The thing is that he doesn't lay a hand on my mother. He's probably convinced that because I am his kid, he can do whatever he wants with me, and he's even said it before.."I can hit you whenever I want and I like doing it.".
I'm not saying my father is a horrible, bad man, but he's a monster in there. A real one. I've been scarred emotionally for so long. He does care about me "in some ways" like buying the stuff I like to eat, necessities and all that, but all those things don't make me happy. I can't even recall a good time with him. I only have memories of him hitting me and pissing me off.

What should I do? I've thought about counseling before but that would only mean I would be the bad person as well.

Look kid the man is not your father, you know as well as my self that this man buy's you things to bribe you to not talk about the abuse & in a perverted way *make up* for what has been done. You may try your best to keep the man calm but one day the abuse may escalate beyond beating to killing, i'm saying this as well because we both know it's the truth. You seem to be in a sticky situation, you obviously can't help that man the man was never a father & never will be a father but you can help your self by getting counselling & staying as far away as you can. If you fear for you or your mothers life don't hesitate to alert the proper atorities like the police, you can also share with a tharapist about the abuse and get proper help to deal with the situation without any one knowing. This ain't normal, it never is soo don't just accept it try to safely stop it.