That What I wanna be

I wanna be a prestigous civil engineer in my country, but first I need to study in the university of the state.
My career lasts ten semestres that's equal to that five years.
Ok, that's wath what I wanna be.

Saying ''wanna'' is fine in informal conversation, but in more formal writing, you should say ''want to'' (you may already know this, but just checking) - good luck with your learning!