I dont think anybody can tell you how to work around "some kind of parental control". Go to a porn site and see if you get a error message, maybe that will give you some info. If you really want to scare your dad, make sure it's a gay one.
And yes, you can hack without any knowledge of computers at all, if you want to turn his box into dust, i would suggest a hammer.
When i read this:
i asked my dad about the tracing shit. he said like this- you once said that grown up people like me doesnt use th computers full ability , well who's using the full ability now huh ? adn then he laughed and walked away...-_-
I think it sounds like he's just playing along to make you sweat a little. But you know him better than i do, so i'm not going to argue about that, it's just my first thought.
It sucks if your dad really spies on you. But if you are making plans on how to break his computer, i guess you can call it intelligence gathering and a part of his defence.