Am I Okay??

Recently, I often think about my life these days.
I don't study now comparing with my life of high school.
I decided to enter university to study English.
I want to be good English speaker.
However I haven't understand the meaning of university's classes yet.
Will classes be my power? Am I going to be good English speaker?
I have to set up my mind and plan of my university life...
I an confused now...sigh......