Obama is basically doing whatever he can to keep college aged students (18-30) better education, by unvesting in education and technology and creating more tech jobs. He does affect you.
Although if you believe that, the green party or libertarian party would probably welcome you with open arms. :x
There's one more detail you did not take into account, but you couldn't know for I have never expressed it.
But don't get me wrong, I was for Obama too, all the way. And I respect people who voted otherwise, democracy is important and I have nothing to say about people who do not share my view or have different, but non-less important values.