wad u shud du iz prolly git sum gud buks an reed tham alot on yer time cuz dey'll make u smarten da brainhead....kay?

through books
if u wanna be good i say read all the plays written by shakespeare
at first u will have problem but later u will understand and plus
u get these kind of books in which on the left hand side the matter is written which was written by him and on the right it is in modern english
the only anyone finds these tuff is coz they r in old english
OR
u cood u for classes and reading books will help a lot

Look at words on the internet. I'm sure you can find somewhere where GOOD is spelled the right way.

Oh, and PLEASE, too.

Learn good spoken English from television news people.Learn proper contemporary English by reading books from the bestseller lists.

read the Washington Post