How can i become a pure mathematician?

I'm sorry for not giving enough information about me...Ok..let me tell you about myself...I was a straight A's student until i was 16..Then everything started to go downhill for me..I study less..have fun more..sleep in class..everything.I was one arrogant son of a cow(I'm still on the top of the class without much effort)..

When my dad found out about that..he was basically furious..My dad and i don't get along well anyway...So he forbid me from going to university although i can..So i have to work..doing repetitive works,surrounded by 'dull' co-workers...Down into the deepest abyss and back(depression)...

So..i found someone that i really like..thinking of marriage(im 24) and maybe to continue my study ..I don't have enough money for both..But i know to continue living i have to hold on to something..mathematics would be one of those things...

What would u feel when u look at someone u know that has actually accomplished something..earn more than u?And he's not as smart as you are?(inferiority complex but who cares?)

so your dad's punishment is to forbid you from going to college? That's rather unusual