I failed my knowledge test a gazillion times, i think i need help!?

Ok, i have taken my written test for like uhh...5 or 6 times already (sorry, i've lost count....lol) , i have studied like crazy, i found a bunch of tests online, and i remembered them all, but the thing is, when i took test at the dmv, the questions were completely different, the weren't about road stuff at all (almost), they were asking me something about GDL, or like, how long do you have to be supervised if you have a provisional license, ok, i don't remember exactly, but you getthe idea, it wasn't about right o left turns at all. So, those stupid questions have always got me stuck ,and thats why i failed it so many times. Do you know any websites that can give me practice tests with all the possible questions? I really don't need road stuff, i already studied everything there is about that, i just need some questions that have nothing to do with driving the actual car. By the way, i live in NJ, and they give you 50 questions. Please Help!!! If you know any websites,please tell me!