How??

presentation and coursework are coming next week
this time i got no confident with it
i scare i cant pass my coursework this time
what can i do now??
study??
i really cannot understand what is the lecturer going to teach me...
is easy but look hard....
i think i need to spend more time in library to get concentration...
at the same time,i must also study hard
so that i can pass all the subject for coming exam....