Highschool: Big waste of time

I'm coming to grips with the reality that the 4 hellish years I spent in highschool were absolutely worthless. Almost as worthless as the five years (2 down, 3 to go!) I'm investing in at University. Everything we learned in highschool we are being re-taught, with the helpful information that what we learned in highschool was only half right. I'm sure that once I'm out in the real world, I will once again have to come to terms with the fact that everything I learned at University will be absolutely unapplicable to real-life and ths, also worthless.

For example:

Definition of Ideology from Mr. Price's Civ class in the 11th grade:
Set of personal ideas and quasi-beliefs that may or may not change over time.

Definition of Ideology from my Lit Theory Text:

Ideology is less tenacious as a "set of ideas" than as a system of representations, perceptions and images that precisely encourages men and women to "see" their specific place in a historically peculiar social formation as inevitable, natural, a necessary function of the "real" itself.

So basically our ideology is a personal mechanism which allows us to delude ourselves into accepting the lives we live. Lovely.

I guess its true: highschool is just to teach us how to do our jobs, and be complacent voters. whoo hoo.